Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME.
Volume of PLASMA in the circulation. It is usually measured by INDICATOR DILUTION TECHNIQUES.
An abnormally low volume of blood circulating through the body. It may result in hypovolemic shock (see SHOCK).
Volume of circulating ERYTHROCYTES . It is usually measured by RADIOISOTOPE DILUTION TECHNIQUE.
The circulation of blood through the BLOOD VESSELS of the BRAIN.
The volume of packed RED BLOOD CELLS in a blood specimen. The volume is measured by centrifugation in a tube with graduated markings, or with automated blood cell counters. It is an indicator of erythrocyte status in disease. For example, ANEMIA shows a low value; POLYCYTHEMIA, a high value.
Any liquid used to replace blood plasma, usually a saline solution, often with serum albumins, dextrans or other preparations. These substances do not enhance the oxygen- carrying capacity of blood, but merely replace the volume. They are also used to treat dehydration.
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.
The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.
Translocation of body fluids from one compartment to another, such as from the vascular to the interstitial compartments. Fluid shifts are associated with profound changes in vascular permeability and WATER-ELECTROLYTE IMBALANCE. The shift can also be from the lower body to the upper body as in conditions of weightlessness.
Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle.
The flow of BLOOD through or around an organ or region of the body.
The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat).
The amount of a gas taken up, by the pulmonary capillary blood from the alveolar gas, per minute per unit of average pressure of the gradient of the gas across the BLOOD-AIR BARRIER.
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
Bleeding or escape of blood from a vessel.
Reduction of blood viscosity usually by the addition of cell free solutions. Used clinically (1) in states of impaired microcirculation, (2) for replacement of intraoperative blood loss without homologous blood transfusion, and (3) in cardiopulmonary bypass and hypothermia.
The movement of the BLOOD as it is pumped through the CARDIOVASCULAR SYSTEM.
Method for assessing flow through a system by injection of a known quantity of dye into the system and monitoring its concentration over time at a specific point in the system. (From Dorland, 28th ed)
Substances used to allow enhanced visualization of tissues.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
The oxygen-carrying proteins of ERYTHROCYTES. They are found in all vertebrates and some invertebrates. The number of globin subunits in the hemoglobin quaternary structure differs between species. Structures range from monomeric to a variety of multimeric arrangements.
Solutions having the same osmotic pressure as blood serum, or another solution with which they are compared. (From Grant & Hackh's Chemical Dictionary, 5th ed & Dorland, 28th ed)
Starches that have been chemically modified so that a percentage of OH groups are substituted with 2-hydroxyethyl ether groups.
An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.
A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.
Acute hemorrhage or excessive fluid loss resulting in HYPOVOLEMIA.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
The creation and display of functional images showing where the blood flow reaches by following the distribution of tracers injected into the blood stream.
A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
A tricarbocyanine dye that is used diagnostically in liver function tests and to determine blood volume and cardiac output.
The circulation of the BLOOD through the LUNGS.
Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.
Elements of limited time intervals, contributing to particular results or situations.
Method for determining the circulating blood volume by introducing a known quantity of foreign substance into the blood and determining its concentration some minutes later when thorough mixing has occurred. From these two values the blood volume can be calculated by dividing the quantity of injected material by its concentration in the blood at the time of uniform mixing. Generally expressed as cubic centimeters or liters per kilogram of body weight.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
Unstable isotopes of oxygen that decay or disintegrate emitting radiation. O atoms with atomic weights 13, 14, 15, 19, and 20 are radioactive oxygen isotopes.
The measure of a BLOOD VESSEL's ability to increase the volume of BLOOD it holds without a large increase in BLOOD PRESSURE. The vascular capacitance is equal to the change in volume divided by the change in pressure.
A complex of gadolinium with a chelating agent, diethylenetriamine penta-acetic acid (DTPA see PENTETIC ACID), that is given to enhance the image in cranial and spinal MRIs. (From Martindale, The Extra Pharmacopoeia, 30th ed, p706)
The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.
Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital organs. Common symptom is DIZZINESS but greater negative impacts on the body occur when there is prolonged depravation of oxygen and nutrients.
Therapy whose basic objective is to restore the volume and composition of the body fluids to normal with respect to WATER-ELECTROLYTE BALANCE. Fluids may be administered intravenously, orally, by intermittent gavage, or by HYPODERMOCLYSIS.
The number of times the HEART VENTRICLES contract per unit of time, usually per minute.
The upper part of the trunk between the NECK and the ABDOMEN. It contains the chief organs of the circulatory and respiratory systems. (From Stedman, 25th ed)
The circulation of the BLOOD through the MICROVASCULAR NETWORK.
The force that opposes the flow of BLOOD through a vascular bed. It is equal to the difference in BLOOD PRESSURE across the vascular bed divided by the CARDIAC OUTPUT.
Repetitive withdrawal of small amounts of blood and replacement with donor blood until a large proportion of the blood volume has been exchanged. Used in treatment of fetal erythroblastosis, hepatic coma, sickle cell anemia, disseminated intravascular coagulation, septicemia, burns, thrombotic thrombopenic purpura, and fulminant malaria.
Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain.
Recording of change in the size of a part as modified by the circulation in it.
Methods developed to aid in the interpretation of ultrasound, radiographic images, etc., for diagnosis of disease.
A 3.5 per cent colloidal solution containing urea-cross-linked polymerized peptides. It has a molecular weight of approximately 35,000 and is prepared from gelatin and electrolytes. The polymeric solution is used as a plasma expander.
A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Improvement of the quality of a picture by various techniques, including computer processing, digital filtering, echocardiographic techniques, light and ultrastructural MICROSCOPY, fluorescence spectrometry and microscopy, scintigraphy, and in vitro image processing at the molecular level.
The circulation of blood through the BLOOD VESSELS supplying the abdominal VISCERA.
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
The blood pressure in the central large VEINS of the body. It is distinguished from peripheral venous pressure which occurs in an extremity.
The measurement of an organ in volume, mass, or heaviness.
The balance of fluid in the BODY FLUID COMPARTMENTS; total BODY WATER; BLOOD VOLUME; EXTRACELLULAR SPACE; INTRACELLULAR SPACE, maintained by processes in the body that regulate the intake and excretion of WATER and ELECTROLYTES, particularly SODIUM and POTASSIUM.
Methods for assessing flow through a system by injection of a known quantity of an indicator, such as a dye, radionuclide, or chilled liquid, into the system and monitoring its concentration over time at a specific point in the system. (From Dorland, 28th ed)
Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity.
One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337)
The circulation of BLOOD through the LIVER.
The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.
An increase in the excretion of URINE. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The position or attitude of the body.
The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, atomic number 43, and atomic weight 98.91. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.
Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS.
Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION.
Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed)
The posture of an individual lying face up.
Hypertonic sodium chloride solution. A solution having an osmotic pressure greater than that of physiologic salt solution (0.9 g NaCl in 100 ml purified water).
Fluids composed mainly of water found within the body.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A type of MAGNETIC RESONANCE IMAGING that uses only one nuclear spin excitation per image and therefore can obtain images in a fraction of a second rather than the minutes required in traditional MRI techniques. It is used in a variety of medical and scientific applications.
Measurement of oxygen and carbon dioxide in the blood.
The minute vessels that connect the arterioles and venules.
Forced expiratory effort against a closed GLOTTIS.
Receptors in the vascular system, particularly the aorta and carotid sinus, which are sensitive to stretch of the vessel walls.
Recording changes in electrical impedance between electrodes placed on opposite sides of a part of the body, as a measure of volume changes in the path of the current. (Stedman, 25th ed)
A pathological condition manifested by failure to perfuse or oxygenate vital organs.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
The vessels carrying blood away from the capillary beds.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.
The property of blood capillary ENDOTHELIUM that allows for the selective exchange of substances between the blood and surrounding tissues and through membranous barriers such as the BLOOD-AIR BARRIER; BLOOD-AQUEOUS BARRIER; BLOOD-BRAIN BARRIER; BLOOD-NERVE BARRIER; BLOOD-RETINAL BARRIER; and BLOOD-TESTIS BARRIER. Small lipid-soluble molecules such as carbon dioxide and oxygen move freely by diffusion. Water and water-soluble molecules cannot pass through the endothelial walls and are dependent on microscopic pores. These pores show narrow areas (TIGHT JUNCTIONS) which may limit large molecule movement.
A pulmonary ventilation rate faster than is metabolically necessary for the exchange of gases. It is the result of an increased frequency of breathing, an increased tidal volume, or a combination of both. It causes an excess intake of oxygen and the blowing off of carbon dioxide.
The restoration to life or consciousness of one apparently dead. (Dorland, 27th ed)
Antidiuretic hormones released by the NEUROHYPOPHYSIS of all vertebrates (structure varies with species) to regulate water balance and OSMOLARITY. In general, vasopressin is a nonapeptide consisting of a six-amino-acid ring with a cysteine 1 to cysteine 6 disulfide bridge or an octapeptide containing a CYSTINE. All mammals have arginine vasopressin except the pig with a lysine at position 8. Vasopressin, a vasoconstrictor, acts on the KIDNEY COLLECTING DUCTS to increase water reabsorption, increase blood volume and blood pressure.
A compound formed by the combination of hemoglobin and oxygen. It is a complex in which the oxygen is bound directly to the iron without causing a change from the ferrous to the ferric state.
The finer blood vessels of the vasculature that are generally less than 100 microns in internal diameter.
The part of the face above the eyes.
Two-phase systems in which one is uniformly dispersed in another as particles small enough so they cannot be filtered or will not settle out. The dispersing or continuous phase or medium envelops the particles of the discontinuous phase. All three states of matter can form colloids among each other.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
Benign and malignant central nervous system neoplasms derived from glial cells (i.e., astrocytes, oligodendrocytes, and ependymocytes). Astrocytes may give rise to astrocytomas (ASTROCYTOMA) or glioblastoma multiforme (see GLIOBLASTOMA). Oligodendrocytes give rise to oligodendrogliomas (OLIGODENDROGLIOMA) and ependymocytes may undergo transformation to become EPENDYMOMA; CHOROID PLEXUS NEOPLASMS; or colloid cysts of the third ventricle. (From Escourolle et al., Manual of Basic Neuropathology, 2nd ed, p21)
A ubiquitous sodium salt that is commonly used to season food.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
The volume of air remaining in the LUNGS at the end of a maximal expiration. Common abbreviation is RV.
Water content outside of the lung vasculature. About 80% of a normal lung is made up of water, including intracellular, interstitial, and blood water. Failure to maintain the normal homeostatic fluid exchange between the vascular space and the interstitium of the lungs can result in PULMONARY EDEMA and flooding of the alveolar space.
An imprecise term which may refer to a sense of spatial disorientation, motion of the environment, or lightheadedness.
Water-soluble proteins found in egg whites, blood, lymph, and other tissues and fluids. They coagulate upon heating.
A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.
Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.
A procedure in which fluid is withdrawn from a body cavity or organ via a trocar and cannula, needle, or other hollow instrument.
The concentration of osmotically active particles in solution expressed in terms of osmoles of solute per liter of solution. Osmolality is expressed in terms of osmoles of solute per kilogram of solvent.
The arterial blood vessels supplying the CEREBRUM.
Pressure within the cranial cavity. It is influenced by brain mass, the circulatory system, CSF dynamics, and skull rigidity.
The introduction of whole blood or blood component directly into the blood stream. (Dorland, 27th ed)
Determination of the shortest time interval between the injection of a substance in the vein and its arrival at some distant site in sufficient concentration to produce a recognizable end result. It represents approximately the inverse of the average velocity of blood flow between two points.
External decompression applied to the lower body. It is used to study orthostatic intolerance and the effects of gravitation and acceleration, to produce simulated hemorrhage in physiologic research, to assess cardiovascular function, and to reduce abdominal stress during childbirth.
Poly or pyrophosphates of tin. In conjunction with radioactive technetium these compounds are used as bone-scanning agents and in scintigraphy to diagnose myocardial and cerebral infarction.
Measurement of blood flow based on induction at one point of the circulation of a known change in the intravascular heat content of flowing blood and detection of the resultant change in temperature at a point downstream.
The hollow, muscular organ that maintains the circulation of the blood.
Gadolinium. An element of the rare earth family of metals. It has the atomic symbol Gd, atomic number 64, and atomic weight 157.25. Its oxide is used in the control rods of some nuclear reactors.
Interstitial space between cells, occupied by INTERSTITIAL FLUID as well as amorphous and fibrous substances. For organisms with a CELL WALL, the extracellular space includes everything outside of the CELL MEMBRANE including the PERIPLASM and the cell wall.
A standard and widely accepted diagnostic test used to identify patients who have a vasodepressive and/or cardioinhibitory response as a cause of syncope. (From Braunwald, Heart Disease, 7th ed)
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
A group of glucose polymers made by certain bacteria. Dextrans are used therapeutically as plasma volume expanders and anticoagulants. They are also commonly used in biological experimentation and in industry for a wide variety of purposes.
A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.
Stable chromium atoms that have the same atomic number as the element chromium, but differ in atomic weight. Cr-50, 53, and 54 are stable chromium isotopes.
Treatment process involving the injection of fluid into an organ or tissue.
Substances that are used in place of blood, for example, as an alternative to BLOOD TRANSFUSIONS after blood loss to restore BLOOD VOLUME and oxygen-carrying capacity to the blood circulation, or to perfuse isolated organs.
A significant drop in BLOOD PRESSURE after assuming a standing position. Orthostatic hypotension is a finding, and defined as a 20-mm Hg decrease in systolic pressure or a 10-mm Hg decrease in diastolic pressure 3 minutes after the person has risen from supine to standing. Symptoms generally include DIZZINESS, blurred vision, and SYNCOPE.
The two types of spaces between which water and other body fluids are distributed: extracellular and intracellular.
The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine.
In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.
The blood pressure in the VEINS. It is usually measured to assess the filling PRESSURE to the HEART VENTRICLE.
A highly specific (Leu-Leu) endopeptidase that generates ANGIOTENSIN I from its precursor ANGIOTENSINOGEN, leading to a cascade of reactions which elevate BLOOD PRESSURE and increase sodium retention by the kidney in the RENIN-ANGIOTENSIN SYSTEM. The enzyme was formerly listed as EC
The internal resistance of the BLOOD to shear forces. The in vitro measure of whole blood viscosity is of limited clinical utility because it bears little relationship to the actual viscosity within the circulation, but an increase in the viscosity of circulating blood can contribute to morbidity in patients suffering from disorders such as SICKLE CELL ANEMIA and POLYCYTHEMIA.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
The separation of particles from a suspension by passage through a filter with very fine pores. In ultrafiltration the separation is accomplished by convective transport; in DIALYSIS separation relies instead upon differential diffusion. Ultrafiltration occurs naturally and is a laboratory procedure. Artificial ultrafiltration of the blood is referred to as HEMOFILTRATION or HEMODIAFILTRATION (if combined with HEMODIALYSIS).
Measurement of hemoglobin concentration in blood.
Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.
A potent natriuretic and vasodilatory peptide or mixture of different-sized low molecular weight PEPTIDES derived from a common precursor and secreted mainly by the HEART ATRIUM. All these peptides share a sequence of about 20 AMINO ACIDS.
The physical or mechanical action of the LUNGS; DIAPHRAGM; RIBS; and CHEST WALL during respiration. It includes airflow, lung volume, neural and reflex controls, mechanoreceptors, breathing patterns, etc.
A diagnostic technique that incorporates the measurement of molecular diffusion (such as water or metabolites) for tissue assessment by MRI. The degree of molecular movement can be measured by changes of apparent diffusion coefficient (ADC) with time, as reflected by tissue microstructure. Diffusion MRI has been used to study BRAIN ISCHEMIA and tumor response to treatment.
Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.
The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.
The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (= OXYGEN CONSUMPTION) or cell respiration (= CELL RESPIRATION).
A state characterized by loss of feeling or sensation. This depression of nerve function is usually the result of pharmacologic action and is induced to allow performance of surgery or other painful procedures.
The number of RED BLOOD CELLS per unit volume in a sample of venous BLOOD.
The carbohydrate-rich zone on the cell surface. This zone can be visualized by a variety of stains as well as by its affinity for lectins. Although most of the carbohydrate is attached to intrinsic plasma membrane molecules, the glycocalyx usually also contains both glycoproteins and proteoglycans that have been secreted into the extracellular space and then adsorbed onto the cell surface. (Alberts et al., Molecular Biology of the Cell, 3d ed, p502)
Therapy for the insufficient cleansing of the BLOOD by the kidneys based on dialysis and including hemodialysis, PERITONEAL DIALYSIS, and HEMODIAFILTRATION.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
The pressure that would be exerted by one component of a mixture of gases if it were present alone in a container. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Normal human serum albumin mildly iodinated with radioactive iodine (131-I) which has a half-life of 8 days, and emits beta and gamma rays. It is used as a diagnostic aid in blood volume determination. (from Merck Index, 11th ed)
Sodium excretion by URINATION.

Reduction in baroreflex cardiovascular responses due to venous infusion in the rabbit. (1/1976)

We studied reflex bradycardia and depression of mean arterial blood pressure (MAP) during left aortic nerve (LAN) stimulation before and after volume infusion in the anesthetized rabbit. Step increases in mean right atrial pressure (MRAP) to 10 mm Hg did not result in a significant change in heart rate or MAP. After volume loading, responses to LAN stimulation were not as great and the degree of attenuation was propoetional to the level of increased MRAP. A change in responsiveness was observed after elevation of MRAP by only 1 mm Hg, corresponding to less than a 10% increase in average calculated blood volume. after an increase in MRAP of 10 mm Hg, peak responses were attenuated by 44% (heart rate) and 52% (MAP), and the initial slopes (rate of change) were reduced by 46% (heart rate) and 66% (MAP). Comparison of the responses after infusion with blood and dextran solutions indicated that hemodilution was an unlikely explanation for the attenuation of the reflex responses. Total arterial baroreceptor denervation (ABD) abolished the volume-related attenuation was still present following bilateral aortic nerve section or vagotomy. It thus appears that the carotid sinus responds to changes inblood volume and influences the reflex cardiovascular responses to afferent stimulation of the LAN. On the other hand, cardiopulmonary receptors subserved by vagal afferents do not appear to be involved.  (+info)

Quantification of baroreceptor influence on arterial pressure changes seen in primary angiotension-induced hypertension in dogs. (2/1976)

We studied the role of the sino-aortic baroreceptors in the gradual development of hypertension induced by prolonged administration of small amounts of angiotensin II (A II) in intact dogs and dogs with denervated sino-aortic baroreceptors. Short-term 1-hour infusions of A II(1.0-100 ng/kg per min) showed that conscious denervated dogs had twice the pressor sensitivity of intact dogs. Long-term infusions of A II at 5.0 ng/kg per min (2-3 weeks) with continuous 24-hour recordings of arterial pressure showed that intact dogs required 28 hours to reach the same level of pressure attained by denervated dogs during the 1st hour of infusion. At the 28th hour the pressure in both groups was 70% of the maximum value attained by the 7th day of infusion. Both intact and denervated dogs reached nearly the same plateau level of pressure, the magnitude being directly related both the the A II infusion rate and the daily sodium intake. Cardiac output in intact dogs initially decreased after the onset of A II infusion, but by the 5th day of infusion it was 38% above control, whereas blood volume was unchanged. Heart rate returned to normal after a reduction during the 1st day of infusion in intact dogs. Plasma renin activity could not be detected after 24 hours of A II infusion in either intact or denervated dogs. The data indicate that about 35% of the hypertensive effect of A II results from its acute pressor action, and an additional 35% of the gradual increase in arterial pressure is in large measure a result of baroreceptor resetting. We conclude that the final 30% increase in pressure seems to result from increased cardiac output, the cause of which may be decreased vascular compliance. since the blood volume remains unaltered.  (+info)

Myocardial oxygenation during high work states in hearts with postinfarction remodeling. (3/1976)

BACKGROUND: Postinfarction left ventricular remodeling (LVR) is associated with reductions in myocardial high-energy phosphate (HEP) levels, which are more severe in animals that develop overt congestive heart failure (CHF). During high work states, further HEP loss occurs, which suggests demand-induced ischemia. This study tested the hypothesis that inadequate myocyte oxygen availability is the basis for these HEP abnormalities. METHODS AND RESULTS: Myocardial infarction was produced by left circumflex coronary artery ligation in swine. Studies were performed in 20 normal animals, 14 animals with compensated LVR, and 9 animals with CHF. Phosphocreatine (PCr)/ATP was determined with 31P NMR and deoxymyoglobin (Mb-delta) with 1H NMR in myocardium remote from the infarct. Basal PCr/ATP tended to be decreased in postinfarct hearts, and this was significant in animals with CHF. Infusion of dobutamine (20 microg x kg-1 x min-1 IV) caused doubling of the rate-pressure product in both normal and LVR hearts and resulted in comparable significant decreases of PCr/ATP in both groups. This decrease in PCr/ATP was not associated with detectable Mb-delta. In CHF hearts, rate-pressure product increased only 40% in response to dobutamine; this attenuated response also was not associated with detectable Mb-delta. CONCLUSIONS: Thus, the decrease of PCr/ATP during dobutamine infusion is not the result of insufficient myocardial oxygen availability. Furthermore, in CHF hearts, the low basal PCr/ATP and the attenuated response to dobutamine occurred in the absence of myocardial hypoxia, indicating that the HEP and contractile abnormalities were not the result of insufficient oxygen availability.  (+info)

Increased orthostatic tolerance following moderate exercise training in patients with unexplained syncope. (4/1976)

OBJECTIVE: To determine whether a programme of simple, moderate exercise training increases blood volume and improves orthostatic tolerance in patients with attacks of syncope or near syncope related to orthostatic stress. DESIGN: An open study in 14 patients referred with unexplained attacks of syncope, who were shown to have a low tolerance to an orthostatic stress test. Measurements were made of plasma and blood volumes, orthostatic tolerance to a test of combined head up tilt and lower body suction, and baroreceptor sensitivity by applying subatmospheric pressures to a chamber over the neck. Cardiorespiratory fitness was assessed from the relation between heart rate and oxygen uptake during a graded treadmill exercise test. Assessments were made before and after undertaking an exercise training programme (Canadian Air Force 5BX/XBX). RESULTS: After the training period, 12 of the 14 patients showed evidence of improved cardiorespiratory fitness. All 12 patients were symptomatically improved; they showed increases in plasma and blood volumes and in orthostatic tolerance, and decreases in baroreceptor sensitivity. Despite the improved orthostatic tolerance, values of blood pressure both while supine and initially following tilting were lower than before training. CONCLUSIONS: Exercise training has a role in the management of patients with syncope and poor orthostatic tolerance. It improves symptoms and increases orthostatic tolerance without increasing resting blood pressure.  (+info)

Stroke volume decline during prolonged exercise is influenced by the increase in heart rate. (5/1976)

This study determined whether the decline in stroke volume (SV) during prolonged exercise is related to an increase in heart rate (HR) and/or an increase in cutaneous blood flow (CBF). Seven active men cycled for 60 min at approximately 57% peak O2 uptake in a neutral environment (i.e., 27 degrees C, <40% relative humidity). They received a placebo control (CON) or a small oral dose (i.e., approximately 7 mg) of the beta1-adrenoceptor blocker atenolol (BB) at the onset of exercise. At 15 min, HR and SV were similar during CON and BB. From 15 to 55 min during CON, a 13% decline in SV was associated with an 11% increase in HR and not with an increase in CBF. CBF increased mainly from 5 to 15 min and remained stable from 20 to 60 min of exercise in both treatments. However, from 15 to 55 min during BB, when the increase in HR was prevented by atenolol, the decline in SV was also prevented, despite a normal CBF response (i.e., similar to CON). Cardiac output was similar in both treatments and stable throughout the exercise bouts. We conclude that during prolonged exercise in a neutral environment the decline in SV is related to the increase in HR and is not affected by CBF.  (+info)

Effect of acute normovolemic hemodilution on distribution of blood flow and tissue oxygenation in dog skeletal muscle. (6/1976)

Acute normovolemic hemodilution (ANH) is efficient in reducing allogenic blood transfusion needs during elective surgery. Tissue oxygenation is maintained by increased cardiac output and oxygen extraction and, presumably, a more homogeneous tissue perfusion. The aim of this study was to investigate blood flow distribution and oxygenation of skeletal muscle. ANH from hematocrit of 36 +/- 3 to 20 +/- 1% was performed in 22 splenectomized, anesthetized beagles (17 analyzed) ventilated with room air. Normovolemia was confirmed by measurement of blood volume. Distribution of perfusion within skeletal muscle was determined by using radioactive microspheres. Tissue oxygen partial pressure was assessed with a polarographic platinum surface electrode. Cardiac index (3.69 +/- 0.79 vs. 4.79 +/- 0.73 l. min-1. m-2) and muscle perfusion (4.07 +/- 0.44 vs. 5.18 +/- 0.36 ml. 100 g-1. min-1) were increased at hematocrit of 20%. Oxygen delivery to skeletal muscle was reduced to 74% of baseline values (0.64 +/- 0.06 vs. 0.48 +/- 0.03 ml O2. 100 g-1. min-1). Nevertheless, tissue PO2 was preserved (27.4 +/- 1.3 vs. 29.9 +/- 1. 4 Torr). Heterogeneity of muscle perfusion (relative dispersion) was reduced after ANH (20.0 +/- 2.2 vs. 13.9 +/- 1.5%). We conclude that a more homogeneous distribution of perfusion is one mechanism for the preservation of tissue oxygenation after moderate ANH, despite reduced oxygen delivery.  (+info)

Breathing responses to small inspiratory threshold loads in humans. (7/1976)

To investiage the effect of inspiratory threshold load (ITL) on breathing, all previous work studied loads that were much greater than would be encountered under pathophysiological conditions. We hypothesized that mild ITL from 2.5 to 20 cmH2O is sufficient to modify control and sensation of breathing. The study was performed in healthy subjects. The results demonstrated that with mild ITL 1) inspiratory difficulty sensation could be perceived at an ITL of 2.5 cmH2O; 2) tidal volume increased without change in breathing frequency, resulting in hyperpnea; and 3) although additional time was required for inspiratory pressure to attain the threshold before inspiratory flow was initiated, the total inspiratory muscle contraction time remained constant. This resulted in shortening of the available time for inspiratory flow, so that the tidal volume was maintained or increased by significant increase in mean inspiratory flow. On the basis of computer simulation, we conclude that the mild ITL is sufficient to increase breathing sensation and alter breathing control, presumably aiming at maintaining a certain level of ventilation but minimizing the energy consumption of the inspiratory muscles.  (+info)

Efficacy of recombinant human Hb by 31P-NMR during isovolemic total exchange transfusion. (8/1976)

The ability of recombinant human Hb (rHb1.1), which is being developed as an oxygen therapeutic, to support metabolism was measured by in vivo 31P-NMR surface coil spectroscopy of the rat abdomen in control animals and in animals subjected to isovolemic exchange transfusion to hematocrit of <3% with human serum albumin or 5 g/dl rHb1.1. No significant changes in metabolite levels were observed in control animals for up to 6 h. The albumin-exchange experiments, however, resulted in a more than eightfold increase in Pi and a 50% drop in phosphocreatine and ATP within 40 min. The tissue pH dropped from 7.4 to 6.8. The decrease in high-energy phosphates obeyed Michaelis-Menten kinetics, with a Michaelis-Menten constant of 3% as the hematocrit at which a 50% drop in high-energy phosphates was observed. Exchange transfusion with rHb1.1 resulted in no significant drop in high-energy phosphates, no rise in Pi, and no change in tissue pH from 7.35 +/- 0.15 for up to 5 h after exchange. By these criteria, rHb1.1 at a plasma Hb concentration of approximately 5 g/dl after total exchange transfusion was able to sustain energy metabolism of gut tissue at levels indistinguishable from control rats with a threefold higher total Hb level in erythrocytes.  (+info)

BACKGROUND AND PURPOSE: Perfusion MR imaging measures of relative CBV can distinguish recurrent tumor from posttreatment radiation effects in high-grade gliomas. Currently, relative CBV measurement requires normalization based on user-defined reference tissues. A recently proposed method of relative CBV standardization eliminates the need for user input. This study compares the predictive performance of relative CBV standardization against relative CBV normalization for quantifying recurrent tumor burden in high-grade gliomas relative to posttreatment radiation effects.. MATERIALS AND METHODS: We recruited 38 previously treated patients with high-grade gliomas (World Health Organization grades III or IV) undergoing surgical re-resection for new contrast-enhancing lesions concerning for recurrent tumor versus posttreatment radiation effects. We recovered 112 image-localized biopsies and quantified the percentage of histologic tumor content versus posttreatment radiation effects for each sample. ...
Angiographic methods can provide valuable information on vessel morphology and hemodynamics, but are often qualitative in nature, somewhat limiting their ability for comparison across arteries and subjects. In this work we present a method for quantifying absolute blood volume flow rates within large vessels using dynamic angiographic data. First, a kinetic model incorporating relative blood volume, bolus dispersion and signal attenuation is fitted to the data. A self-calibration method is also described for both 2D and 3D data sets to convert the relative blood volume parameter into absolute units. The parameter values are then used to simulate the signal arising from a very short bolus, in the absence of signal attenuation, which can be readily encompassed within a vessel mask of interest. The volume flow rate can then be determined by calculating the resultant blood volume within the vessel mask divided by the simulated bolus duration. This method is applied to non-contrast magnetic resonance imaging
TY - JOUR. T1 - Pseudoprogression of glioblastoma after chemo- and radiation therapy. T2 - Diagnosis by using dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging with ferumoxytol versus gadoteridol and correlation with survival. AU - Gahramanov, Seymur. AU - Muldoon, Leslie. AU - Varallyay, Csanad G.. AU - Li, Xin. AU - Kraemer, Dale. AU - Fu, Rongwei (Rochelle). AU - Hamilton, Bronwyn. AU - Rooney, William. AU - Neuwelt, Edward. PY - 2013/3. Y1 - 2013/3. N2 - Purpose: To compare gadoteridol and ferumoxytol for measurement of relative cerebral blood volume (rCBV) in patients with glioblastoma multiforme (GBM) who showed progressive disease at conventional magnetic resonance (MR) imaging after chemo- and radiation therapy (hereafter, chemoradiotherapy) and to correlate rCBV with survival. Materials and Methods: Informed consent was obtained from all participants before enrollment in one of four institutional review board-approved protocols. Contrast agent leakage maps and rCBV ...
Author: Huber, Laurentius et al.; Genre: Journal Article; Published in Print: 2014; Keywords: Vascular space occupancy; Slab-selective VASO; Cerebral blood volume; 7 Tesla; fMRI acquisition techniques; Title: Slab-selective, BOLD-corrected VASO at 7 Tesla provides measures of cerebral blood volume reactivity with high signal-to-noise ratio
In medicine, intravascular volume status refers to the volume of blood in a patients circulatory system, and is essentially the blood plasma component of the overall volume status of the body, which otherwise includes both intracellular fluid and extracellular fluid. Still, the intravascular component is usually of primary interest, and volume status is sometimes used synonymously with intravascular volume status. It is related to the patients state of hydration, but is not identical to it. For instance, intravascular volume depletion can exist in an adequately hydrated person if there is loss of water into interstitial tissue (e.g. due to hyponatremia or liver failure). Volume contraction of intravascular fluid (blood plasma) is termed hypovolemia, and its signs include, in order of severity: a fast pulse infrequent and low volume urination dry mucous membranes (e.g. a dry tongue) poor capillary refill (e.g. when the patients fingertip is pressed, the skin turns white, but upon release, the ...
Several studies have demonstrated increased rCBV in high-grade gliomas compared with low-grade tumors.2,4-6,8-10 There is, however, considerable variation in the reported rCBV values for low- and high-grade tumors (On-line Table). In SE-EPI DSC imaging, transverse relaxation rates peak at a vessel diameter of 1-2 μm, whereas in GE-EPI DSC imaging they plateau at 3-4 μm and then remain independent of vessel size, explaining the lower rCBVs found with SE techniques.6 Differences may also be due to variations in the histologic types of LGG examined and inclusion or exclusion of intratumoral vessels in the analysis, often not specified.. We demonstrated that inclusion of large intratumoral vessels significantly increases rCBVmax values in all types of LGG. Their identification may be difficult on rCBV color maps alone and necessitates reviewing of unprocessed perfusion data. The diameter of intratumoral vessels clearly identifiable on GE-EPI images lies in the millimeter range (approximating the ...
Several studies have demonstrated increased rCBV in high-grade gliomas compared with low-grade tumors.2,4-6,8-10 There is, however, considerable variation in the reported rCBV values for low- and high-grade tumors (On-line Table). In SE-EPI DSC imaging, transverse relaxation rates peak at a vessel diameter of 1-2 μm, whereas in GE-EPI DSC imaging they plateau at 3-4 μm and then remain independent of vessel size, explaining the lower rCBVs found with SE techniques.6 Differences may also be due to variations in the histologic types of LGG examined and inclusion or exclusion of intratumoral vessels in the analysis, often not specified.. We demonstrated that inclusion of large intratumoral vessels significantly increases rCBVmax values in all types of LGG. Their identification may be difficult on rCBV color maps alone and necessitates reviewing of unprocessed perfusion data. The diameter of intratumoral vessels clearly identifiable on GE-EPI images lies in the millimeter range (approximating the ...
Synonyms for Blood volume in Free Thesaurus. Antonyms for Blood volume. 76 synonyms for blood: lifeblood, gore, vital fluid, family, relations, birth, descent, extraction, ancestry, lineage, kinship, kindred, hostility, anger.... What are synonyms for Blood volume?
PURPOSE: To use multimodal magnetic resonance imaging (MRI) to quantify treatment-induced changes in the whole volume of diffuse infiltrating pontine gliomas and correlate them with progression-free survival (PFS). METHODS AND MATERIALS: This prospective study included 22 children aged 3.3 to 14.7 years (median, 5.9 years). Multimodal MRI was performed at 3 distinct time points: before treatment, the first week following radiation therapy (RT), and 2 months after RT. The imaging protocol included morphologic, multi b-value diffusion; arterial spin labeling; and dynamic susceptibility contrast-enhanced perfusion. Morphologic and multimodal data-lesion volume, diffusion coefficients, relative cerebral blood flow, and relative cerebral blood volume (rCBV)-were recorded at the 3 aforementioned time points. The Wilcoxon test was used to compare each individual parameter variation between time points, and its correlation with PFS was assessed by the Spearman test. RESULTS: Following RT, the tumors ...
Looking for hypervolemia? Find out information about hypervolemia. See also: Formulas for the Volumes of Some Common Solids Formulas for the Volumes of Some Common Solids Solid Volume1 cube l 3 right rectangular... Explanation of hypervolemia
The |i|Journal of Biomedical Optics|/i| (JBO) publishes peer-reviewed papers on the use of novel optical systems and techniques for improved health care and biomedical research.
PRIMARY OBJECTIVE:. I. To prospectively determine the sensitivity and specificity of dynamic susceptibility contrast (DSC)-MRI parameters in detecting tumor recurrence versus radiation necrosis for brain metastases treated with stereotactic radiosurgery (SRS).. SECONDARY OBJECTIVES:. I. To correlate radiographic diagnoses with pathologic diagnoses when surgical resection is clinically indicated.. II. To correlate baseline relative cerebral blood volume (rCBV) values and other hemodynamic parameters with tumor primary histology.. III. To assess overall survival, local failure, distant brain failure and neurologic death.. OUTLINE:. Participants undergo a diagnostic MRI with and without contrast and treatment planning DSC perfusion MRI series before receiving SRS at 4-6 weeks after SRS, and then every 3 months unless clinically indicated sooner. ...
The human hippocampal formation is characterized by anterior-posterior gradients of cell density, neurochemistry, and hemodynamics. In addition, some functions are associated with specific subfields (subiculum, CA1-4, dentate gyrus) and regions (anterior and posterior). We performed contrast-enhanced, high-resolution T1-weighted 3T steady state (SS) imaging to investigate cerebral blood volume (CBV) gradients of the hippocampal formation. We studied 14 healthy subjects and found significant CBV gradients (anterior , posterior) in the subiculum but not in other hippocampal subfields. Since CBV is a marker of basal metabolism, these results indicate a greater baseline activity in the anterior compared with the posterior subiculum. This gradient might be related to the role of the subiculum as the main outflow station of the hippocampal formation and might have implications for the mechanisms of neuropsychiatric disorders. © 2014 Wiley Periodicals, Inc. ...
TY - JOUR. T1 - Perfusion-based segmentation of the human brain using similarity mapping. AU - Wiart, Marlene. AU - Rognin, Nicolas. AU - Berthezene, Yves. AU - Nighoghossian, Norbert. AU - Froment, Jean Claude. AU - Baskurt, Atilla. PY - 2001. Y1 - 2001. N2 - In this work, a method for segmenting human brain MR scans on the basis of perfusion is described. This technique uses a measure of similarity between the time-intensity curves obtained with dynamic susceptibility contrast-enhanced MRI and a modeled curve of reference to isolate a tissue of interest, such as white or gray matter. The aim of this study was to validate the method by performing segmentation of white and gray matter in six controls. The relative regional blood volume grayto-white matter ratio was used as a criterion to assess the quality of segmentation. On average, this ratio was 2.1 ± 0.2, which is in good agreement with the literature, thus suggesting reliable segmentation. In the case of abnormal perfusion, time-intensity ...
These scientific tests looks convinced, and seems fine for all these while. But if you think about it deeply, it might not be the actual story. Lets take the example of RBCC and anemia. Anemia means the total blood volume in someone body is not sufficient. Are you convinced that just a few tenth or hundred CC of blood that a blood test can measure your total blood volume? In brief, blood test assay is taking proportion of certain substance inside a certain volume of blood, which is quantitative measurement. It doesnt sounds logic that we can measure total blood volume inside a body using this kind of quantitative measurement. Let me describe using a real life example. Assume inside a mall there are 1 million people and we do not know. We would like to know the total number of people and we started the survey. If we sample using 100 people, 60 men and 40 women, we may be able to get the proportion of man to woman in the mall, but we will never able to know the total number of people inside the ...
Tumour cells including those lining vascular spaces (asterisks) and those containing mitotic figures (arrows) show positive granular cytoplasmic staining for fa
A lot of people with ME and/or POTS are thought to have low blood volume and that this low blood volume can cause a variety of symptoms. Now, if you...
Assessment of myocardial blood volume changes during adenosine using MCE can be used for the determination of the functional relevance of coronary stenoses of intermediate angiographic severity if MVO2 is increased during adenosine.
I remember vaguely that sometime about 1935 there appeared in Tubercle the observations of two experimenters who, having shaved one side of rabbits chests, pai
In view of the remarkable decrease of the relative heart weight and the relative blood volume in growing pigs, we investigated whether cardiac output (CO) and stroke volume (SV) of modern growing pigs are proportional to body mass (M), as predicted by allometric scaling laws: CO (or SV) = a.M(b), ... read more in which b is a multitude of 0.25 (quarter power scaling law). Specifically, we tested the hypothesis that CO scales with M to the power of 0.75 (CO = a.M(0.75)) and SV scales with M to the power of 1.00 (SV = a.M(1.0)) and investigated whether these relations persisted during increased cardiac stress. For this purpose, 2 groups of pigs (group 1 of 57 +/- 3 kg in Lelystad, and group 2 of 28 +/- 1 kg in Rotterdam) were chronically instrumented with a flow probe to measure CO and SV; instrumented pigs were studied at rest and during strenuous exercise (at approximately 85% of maximum heart rate). Analysis of both groups of pigs (analyzed separately or combined) under resting conditions ...
By carefully considering all the challenges of high-field VASO and filling behavior of the relevant vasculature, the proposed method can detect and quantify CBV changes with high CNR in human brain at 7T.
The cord provides oxygen and other essentials to the baby in the womb and in the first few minutes after the birth, while the babys lungs are inflating and acclimating to breathing air for the first time. Its essential for babys oxygenation that the cord remain intact for a *minimum* of 3 minutes after the birth, according to the World Health Organization. Additionally, since the blood in the placenta and cord are part of the babys total blood volume and designed to be returned to the baby through the cord after the birth, if the cord is clamped and cut prematurely, the baby is deprived of 30-40% of his total blood volume, which means that many babies have low iron levels due to that blood loss. This is a health problem called anemia, and its measurable for 6 months or more after the birth in babies whose cords were cut too early ...
View Notes - TheUrinarySystemNew_1 from AVS 350L at Cal Poly Pomona. Vasoconstrictors Functions of the Urinary System Maintains Homeostasis a. Blood volume b. Blood concentration of: 1. fluid balance
The main findings of our study are threefold. First, increased PEEP during positive-pressure ventilation with moderate tidal volumes produced an increase in MSFP, which almost completely compensated for the concomitant increase in RAP and did not change RVR. Consequently, cardiac output did not change. When blood volume was altered, MSFP and RAP changed in the same direction, but RAP was less affected. Accordingly, VRdP and cardiac output decreased and increased in parallel with blood volume, but again, RVR did not change.. Second, MSFPinsp_hold overestimated the MSFPRAO in euvolemic conditions, regardless of the PEEP level, whereas in bleeding and hypervolemia, the observed values were very similar.. Third, the inspiratory hold maneuvers shifted the venous return pressure/flow relationship to the right of the reference venous return curve in euvolemic conditions but did not do so in bleeding or hypervolemia.. To explain the shift in the pressure/flow relationship during the inspiratory holds ...
Semantic Scholar extracted view of [Comparative study of circulating blood volume in dogs using T-1824 dye and Cr 51-labelled erythrocytes]. by N. A. Gorbunova
This stock medical exhibit depicts decreased blood volume with subsequent brain damage. It compares this medical condition with the normal condition.
Volume 2 of Ink is My Blood, like Volume 1, was successfully crowdfunded, and covers Apollonias work from 2014 and 2015, again including more than 130 full-page drawings.
The most important thing to remember when beginning to read Rebel Blood is that it is unequivocally not a zombie story. You might flip th...
The mill ball loading was 40% by volume, ... The optimal ball diameter in a mill 333 The grinding efficiency of the narrow particle ... cement ball mill volume loading pictures - … How to Handle the Charge Volume of a Ball Mill or Rod Mill - Essay ... Jan 4, 2012 ... The charge volume of a ball or rod mill is expressed as the percentage of .... ...
The Volume Merge operation flattens the scalar data in a collection of volumes into a single base volume. This is useful for converting many overlapping volumes into one large volume for more efficient rendering. For example, you can stamp hundreds of thousands of volumes into a single volume for faster rendering, and flatten hierarchies into a low-res base. You can also create a Frustum volume that ensures only voxels in your cameras field of view are created.. ...
regulates carbohydrate-protein metabolism. - determines the level of sodium in the blood. - releases glucose and fatty acids from the blood. - regulates the immune response of the body. - anti-inflammatory. - affects the strength of the connective tissues of the body. When there is too much cortisol there are a number of negative consequences for our body. We are exposed to. - an increase in the level of glucose in the blood and a drop in insulin sensitivity, which usually results in the deposition of fat throughout the body and the inhibition of the possibility of its burning, eg during the reduction cycle. - excessive amount of sodium in the blood and increased blood volume. The result is increased pressure, overload for the heart or vascular system. Excess sodium in the body also causes the retention of larger subcutaneous water, which affects the quality of the silhouette. - weakened bodys resistance to diseases and infections. - weight gain, increased blood sugar, slower metabolic rate and ...
This eMedTV resource discusses how aliskiren-HCTZ is used for lowering high blood pressure in adults. This page further explains aliskiren-HCTZ uses, including an explanation of how the drug works to reduce blood volume and relax the blood vessels.
Saya promised to use her sword fighting skills to protect her classmates. When man-eating monsters start snatching away her friends, though, can she persevere? This manga series is based on an anime collaboration between CLAMP and Production I.G and continues the story line that began in the Blood+ anime and manga worlds!. * Prequel to Production I.Gs Blood-C: The Last Dark feature film!. * Based on CLAMPs original story line and character designs!. * Dark Horse has sold over 70,000 copies of previous Blood+ volumes!. ...
Hypervolemia is a condition in which there is too much fluid in the blood. It is also known as fluid overload. Learn more about the causes.
Which volumes or VDBs in the first input to stamp into. If no name attribute is present, there should be a single volume or VDB and is treated as the density target.. If more than one is present, a name attribute should be present. The name is used to compare with the volumes cooked in the third input.. All of the destination must be aligned and of the same time (vdb or volume).. ...
Phytopathology October 2010 - Volume 100, Number 10 Table of Contents...Phytopathology October 2010 - Volume 100, Number 10 Table of Contents...​​PhytopathologyOctober 2010 - Volume 100, Number 10...
Adjustable Volume Pipettes found in: DiamondPRO™ Adjustable Volume Pipettor, Research Plus Fixed-Volume Pipettes, Pearl™ Adjustable Volume Pipettes,..
You can increase the reported capacity (the capacity reported to hosts) of a volume by using the free capacity that is available in the pool or volume group.
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The search volumes for bitcoin and ethereum appear to be inversely correlated during August. This search data reflects overall market trends, with bitco
The 2015 Nissan GT-R Nismo holds a lap time of seven minutes and 8.679 seconds around the Nurburgring, which Nissan claims makes it the fastest volume production car around the track.
Volume. Length. 1cm. Length is measured in mm, cm, m or km. Area. 1cm. 1cm. 1cm 2. Area is measured in mm 2 , cm 2 , m 2 or km 2 3cm 8cm Area = length x width Area…
iMedPub is a new approach to scientific publishing. As an open service to scientists, it is driven by researchers for researchers, while serving the interests of the general public. Volume 6, Issue 5, 2015
iMedPub is a new approach to scientific publishing. As an open service to scientists, it is driven by researchers for researchers, while serving the interests of the general public. Volume 9, Issue 2, 2013
iMedPub is a new approach to scientific publishing. As an open service to scientists, it is driven by researchers for researchers, while serving the interests of the general public. Volume 5, Issue 5, 2014
iMedPub is a new approach to scientific publishing. As an open service to scientists, it is driven by researchers for researchers, while serving the interests of the general public. Volume 2, Issue 1, 2006
iMedPub is a new approach to scientific publishing. As an open service to scientists, it is driven by researchers for researchers, while serving the interests of the general public. Volume 1, Issue 2 | 2015
Technique Volume 88, Issue 7. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Multicenter prospective randomized trial to compare heart failure management strategies based on clinical assessment of volume status vs. direct measurement of blood volume with a radioisotope technique. Subjects will be randomly assigned to a standard care strategy with guideline recommended treatment based on serial clinical assessment of blood volume or a measured blood volume strategy with guideline recommended treatment based on serial measured blood volume. All subjects will undergo blood volume measurement procedures, but the testing results will only be returned to the physician in the group assigned to management according to measured blood volume status. Subjects will be blinded to their study treatment assignment status ...
TY - JOUR. T1 - Fetal heart rate, arterial pressure, and blood volume responses to cortisol infusion. AU - Wood, C. E.. AU - Cheung, C. Y.. AU - Brace, R. A.. PY - 1987. Y1 - 1987. N2 - The purpose of this study was to determine whether physiological amounts of cortisol affect the fetal cardiovascular system. Cortisol (4 μg/min) or the vehicle was infused intravenously for 5 h into six chronically catheterized sheep fetuses at 127-143 days gestation (term = 145-150 days). In the cortisol-infused animals, plasma cortisol concentration increased from 2.0 ± 0.6 (SE) to 8.3 ± 0.9 ng/ml. There was a concomitant decrease in fetal heart rate of 38 beats/min (P , 1 x 10-6) and an increase in arterial pressure. Estimated blood volume decreased by 6% in the cortisol-infused fetuses compared with the vehicle-infused animals (P , 1 x 10-4). In addition, plasma norepinephrine and epinephrine concentrations decreased to 70% of control at the end of the 5-h cortisol infusion, whereas plasma renin ...
This study investigated whether excision of either the right or left atrial appendage of rats alters their natriuretic response and the release of atrial natriuretic factor during acute blood volume expansion or reduction. These animals were subjected to a thoracotomy and either had their right or left atrial appendages removed or underwent a right or left atrial sham appendectomy for comparative, control purposes. Intrajugular vein, intracarotid artery, and intravesical catheters were installed 3-4 weeks later under sodium pentobarbital anesthesia. Then, when the rats were conscious, blood volume was expanded using blood from donor rats once every 15 minutes in 3 increments of 10% of the calculated total blood volume at a rate of 5 ml/kg/min. Blood and urine samples were collected before volume expansion and at the end of each 15-minute period, with the withdrawn blood being replaced. A maximal fourfold increase in urinary volume, urinary sodium excretion, and plasma atrial natriuretic factor ...
Effects of hemodialysis on extracellular fluid volume distribution, left ventricular volumes, and cardiac output were determined in patients with end-stage renal disease (n = 19). Distribution of extracellular fluid loss from hemodialysis differed widely among patients, so that weight change correlated weakly with contraction of total blood volume (index of determination 29%, p less than 0.05). End-diastolic volume (EDV) decreased from 150 +/- 49 ml (mean +/- SD) to 118 +/- 42 ml, p less than 0.001; stroke volume (SV) decreased from 108 +/- 36 to 86 +/- 33 ml (p less than 0.001) without change in ejection fraction (from 0.73 +/- 0.09 to 0.74 +/- 0.11). A significant correlation was found between total blood volume (TBV) and EDV before (r = 0.66, p less than 0.005) and after dialysis (r = 0.61, p less than 0.001). The correlation between TBV and SV was highly significant before (r = 0.78, p less than 0.001) and after dialysis (r = 0.66, p less than 0.005), but there was no correlation between ...
To test these hypotheses, we studied 37 consecutive POTS patients aged 14-21 yr (median = 17.2 yr, 11 men and 26 women) and 12 healthy volunteers aged 15-21 yr (median = 17.4 yr, 5 men and 7 women).. POTS patients were referred to our center for symptoms of orthostatic intolerance lasting for longer than 6 mo. Orthostatic intolerance was defined by the presence of lightheadedness, fatigue, headache, neurocognitive deficits, palpitations, nausea, blurred vision, abnormal sweating, and a sensation of shortness of breath or heat while upright with no other medical explanation for the symptoms. In all patients, POTS was confirmed on a screening upright-tilt table test at 70°. POTS was diagnosed by symptoms of orthostatic intolerance during the screening tilt test associated with an increase in sinus HR of ,30 beats/min or to a HR of ,120 beats/min during the first 10 min of tilt as defined in the adult literature (20, 29). We used mercury in-Silastic strain-gauge plethysmography to measure supine ...
The hemodynamic effects of hypovolemia and acidosis were studied in 23 patients with cholera. Studies were made before and during fluid replacement and administration of alkali.. The major hemodynamic abnormalities encountered before rehydration can be ascribed to a reduction in circulating blood volume. Hypovolemia was associated with a reduction in cardiac output, blood pressures, and central blood volume. Restoration of blood volume returned these variables toward normal.. The chief effect of acidosis appeared to be a redistribution of blood from the peripheral to the central circulation; consequently, central blood volume, lesser circulation pressures, and cardiac output were relatively well maintained despite hypovolemia. Fluid administration without correction of acidosis favored a disproportionate increase in central blood volume, while reduction in hydrogen ion concentration attending fluid replacement resulted in a more even distribution of the circulating blood volume and reduced the ...
TY - CHAP. T1 - Sinoaortic baroreceptors and the control of blood volume in the nonhuman primate. AU - Cornish, K. G.. AU - McCulloch, T.. AU - Gilmore, J. P.. PY - 1984. Y1 - 1984. N2 - The purpose of this study was to determine the role of the aortic and carotid baroreceptors in regulating blood volume in the conscious nonhuman primate. Eighteen control animals were surgically instrumented to permit the recording of blood pressure, pulse rate, and left atrial pressure. After a urethral catheter was inserted into the bladder, the animals were given an intravenous infusion equal to 20% of the estimated blood volume. Renal function was determined before and after the volume expansion. Nine monkeys received the same infusion after undergoing chronic sinoaortic denervation. The denervated animals responded with a potentiated diuresis and natriuresis. The control animals excreted 24% of the infused volume and 4% of the infused salt while the sinoaortic-denervated animals excreted a volume equal to ...
Both ischemic and non-ischemic heart disease can cause disturbances in the myocardial blood volume (MBV), myocardial perfusion and the myocardial extracellular volume fraction (ECV). Recent studies suggest that native myocardial T1 mapping can detect changes in MBV during adenosine stress without the use of contrast agents. Furthermore, native T2 mapping could also potentially be used to quantify changes in myocardial perfusion and/or MBV. Therefore, the aim of this study was to explore the relative contributions of myocardial perfusion, MBV and ECV to native T1 and native T2 at rest and during adenosine stress in normal physiology. Healthy subjects (n = 41, 26 ± 5 years, 51% females) underwent 1.5 T cardiovascular magnetic resonance (CMR) scanning. Quantitative myocardial perfusion [ml/min/g] and MBV [%] maps were computed from first pass perfusion imaging at adenosine stress (140 microg/kg/min infusion) and rest following an intravenous contrast bolus (0.05 mmol/kg, gadobutrol). Native T1 and T2 maps
TY - JOUR. T1 - Dynamic intramyocardial blood volume. T2 - Evaluation with a radiological opaque marker method. AU - Liu, Y. H.. AU - Bahn, R. C.. AU - Ritman, E. L.. PY - 1992. Y1 - 1992. N2 - In this study the change of intramyocardial blood volume within one cardiac cycle was deduced from the time sequence of the volume delineated by radiopaque markers attached to the left ventricular wall. These data were compared with the change in the volume of the same region of myocardium estimated from the change in angiographic opacification of the heart wall. Five dogs were anesthetized, and four pairs of 2-mm-diameter lead beads were attached to the epicardial and endocardial regions. Two scans using the dynamic spatial reconstructor (a high-speed computed tomographic scanner) were performed during aortograms, one under control conditions and the other during adenosine infusion. The results have shown that the increases of myocardial volume defined by the beads (ΔV(bead), % of volume at control) ...
To the Editor:. I read with great interest the Hypertension Highlights article, Sympathetic Nervous System and Blood Pressure in Humans.1 I would like to make 2 comments with regard to regulation of sympathetic activity, which relates to the above-mentioned article and may be of interest to your readers. We reported many years ago that sympathetic activity as measured by plasma norepinephrine increased with age.2 Furthermore, we demonstrated that sympathetic activity was inversely related to the blood volume.3 Joyner et al1 demonstrated that muscle nerve sympathetic activity was inversely related to the level of cardiac output in a group of young healthy men. It is well established that cardiac output depends on the level of the blood volume and decreases, for example, in response to volume changes in the standing-up position. It is, therefore, likely that the interrelationship observed between cardiac output and sympathetic activity is at least in part explained by variations in the level of ...
Intravenous solutions with dextran function both as volume expanders and means of parenteral nutrition. See the range of Pharmacosmos Dextran
As a general matter of health, optimum blood volume is essential to the proper function of the bodys cardiopulmonary and circulatory systems. Blood is a significant mass within the body, with an average volume for an adult of 51. liters (1); blood typically represents approximately 8% of body mass. For an elite-level endurance athlete, the blood volume may be 30% greater than that of the average adult.. Blood is composed of solid and liquid elements. Plasma, composed of 90% water, is the liquid that transports various types of dissolved particles as well as blood cells. The cells contained the human blood stream are erythrocytes, leukocytes, and platelets. Erythrocytes are the red blood cells that contain hemoglobin, the protein that transports oxygen within the body, as well as carry the waste carbon dioxide produced by the body. Leukocytes are the white blood cells that are responsible for attacking infection and other hostile organisms within the body. There are five different types of white ...
TY - JOUR. T1 - MR perfusion studies of brain for patients with unilateral carotid stenosis or occlusion. T2 - Evaluation of maps of time to peak and percentage of baseline at peak. AU - Teng, Michael Mu Huo. AU - Cheng, Hui Cheng. AU - Kao, Yi Hsuan. AU - Hsu, Li Chi. AU - Yeh, Tzu Chen. AU - Hung, Chung Shiou. AU - Wong, Wen Jang. AU - Hu, Han Hwa. AU - Chiang, Jen Huey. AU - Chang, Cheng Yen. PY - 2001/2/6. Y1 - 2001/2/6. N2 - Maps of time to peak (TTP) and percentage of baseline at peak (PBP) were compared with maps of conventional brain perfusion parameters, namely, mean transit time (MTT) and relative cerebral blood volume (rCBV). We performed MR perfusion studies in 11 patients. All of them had occlusion or high-grade stenosis of the unilateral carotid artery. Three areas of old infarct, 4 areas of new infarct, and 10 areas of brain without infarct were evaluated specifically. In all these cases, the TTP maps appeared similar to the MTT maps. They showed increases, normal values, ...
Under normal conditions, blood flow in the renal arterial circulation is antegrade and maintained during diastole. When renal arterial vascular resistance increases or compliance lessens, a decrease in renal diastolic blood flow occurs, which is more pronounced than the decrease in the systolic component (11). This action results in an increased RI. Importantly, the Doppler waveform is altered not by vascular resistance alone but by the interaction of vascular resistance and compliance (e.g., large arterial distensibility, pulse pressure). Therefore, aging, atherosclerosis, and stiffening of the large arteries will result in an increased RI (12). This scenario likely explains the significantly lower baseline RI value in the cohort of healthy young subjects compared with HF patients.. Baseline levels of VII were not different between groups. After multivariate analyses, there was a poor but significant correlation between RVSP and baseline VII, but no significant correlation remained between ...
MediLumine (pronounced ˌmɛdiluˈmin) is a world-leading provider of anatomical and functional micro-CT contrast agents. Our biomimetic Fenestra® lipid emulsions and Mvivo™ nanoparticles are used for a wide array of applications such as angiogenesis blood volume measurements, cardiovascular disease studies, tumor imaging, in-vivo vascular casting and imaging of altered liver function.. ...
Background and Purpose-Computed tomographic perfusion (CTP) thresholds associated with follow-up brain infarction may differ by time from symptom onset to imaging and reperfusion. We confirm CTP thresholds over time to imaging and reperfusion in patients with acute ischemic stroke from the HERMES collaboration (Highly Effective Reperfusion Evaluated in Multiple Endovascular Stroke Trials) data. Methods-Patients with occlusion on CT angiography were acutely imaged with CTP. Noncontrast CT and magnetic resonance-diffusion weighted imaging at 24 to 48 hours defined follow-up infarction. Reperfusion was assessed on conventional angiogram. Tmax, cerebral blood flow (CBF), and cerebral blood volume maps were derived from delayinsensitive CTP postprocessing. These parameters were analyzed using receiver operator characteristics to derive optimal thresholds based on time from stroke onset-to-CTP or to reperfusion. ANOVA and linear regression were used to test whether the derived CTP thresholds were ...
TY - JOUR. T1 - In Vivo Validation of Magnetic Resonance Blood Volume Flow Measurements with Limited Spatial Resolution in Small Vessels. AU - Hofman, Mark B.M.. AU - Visser, Frans C.. AU - Van Rossum, Albert C.. AU - Vink, Ger Q.M.. AU - Sprenger, Michiel. AU - Westerhof, Nico. PY - 1995/1/1. Y1 - 1995/1/1. N2 - The accuracy of magnetic resonance phase contrast volume flow measurements in small blood vessels is expected to be smaller than in large vessels, because of partial volume effects at the vessel boundary. Accuracy was validated in the dog femoral artery, diameter 3.5 ± 0.7 mm, using an ultrasonic transit‐time flowmeter (TT). The number of pixels per vessel diameter (ND) ranged from 1.6 to 4.8. The vessel cross‐section was determined using a threshold in the magnitude image. Between the two methods the correlation coefficient was 0.95 (range 10-200 ml/min). The proportional difference (PD), (QTT - QMR/1/2(QTT + QMR), was 0.8%, showing no systematic difference between the methods. ...
TY - JOUR. T1 - Real-time passive volume responses of astrocytes to acute osmotic and ischemic stress in cortical slices and in vivo revealed by two-photon microscopy. AU - Risher, W. Christopher. AU - Andrew, R. David. AU - Kirov, Sergei A.. N1 - Copyright: Copyright 2009 Elsevier B.V., All rights reserved.. PY - 2009/1/15. Y1 - 2009/1/15. N2 - The brain swells over the several minutes that follow stroke onset or acute hypo-osmotic stress because cells take up water. Measuring the volume responses of single neurons and glia has necessarily been confined to isolated or cultured cells. Two-photon laser scanning microscopy enables real-time visualization of cells functioning deep within living neocortex in vivo or in brain slices under physiologically relevant osmotic and ischemic stress. Astrocytes and their processes expressing green fluorescent protein in murine cortical slices swelled in response to 20 min of overhydration (-40 mOsm) and shrank during dehydration (+40 or +80 mOsm) at 32-34°C. ...
Principal Investigator:SAWADA Yukihiro, Project Period (FY):2001 - 2002, Research Category:Grant-in-Aid for Scientific Research (C), Section:一般, Research Field:実験系心理学
Intravenous 4% succinylated gelatine fluid at a dose of at least 500mL, to be delivered over less than 60 minutes, Exact dose will be determined by treating physician. The study fluid will also be used for any further fluid boluses required within the next 24-hour period, up to a maximum of 50mL/kg or 3000mL. Any fluid required for blood volume expansion beyond 24 hours is open-label; however, the use of gelatine will be not allowed for 7 days post-enrolment. Other crystalloid fluids or blood products may be used for purposes other than blood volume expansion, such as maintenance requirements or transfusion. Use of albumin solution is also permitted, if specifically indicated. Volume and type of all fluids delivered with 7 days of enrolment, or until ICU discharge, will be recorded. ...
A multi-point method of determining a time-zero blood volume by the tracer dilution technique. A tracer is injected into the blood stream of a living being, and a plurality of mixed samples of blood and tracer are removed from the blood stream at a corresponding plurality of measured time intervals subsequent to the injecting step. A blood portion volume corresponding to each time interval is automatically determined from the tracer level in the mixed samples, and a time-zero blood portion volume is automatically calculated from the determined blood portion volumes and time intervals.
Object. The benefits of measuring cerebral oxygenation in patients with brain injury are well accepted; however, jugular bulb oximetry, which is currently the most popular monitoring technique used has several shortcomings. The goal of this study was to validate the use of a new multiparameter sensor that measures brain tissue oxygenation and metabolism (Neurotrend) by comparing it with positron emission tomography (PET) scanning.. Methods. A Neurotrend sensor was inserted into the frontal region of the brain in 19 patients admitted to the neurointensive care unit. After a period of stabilization, the patients were transferred to the PET scanner suite where C15O, 15O2, and H2 15O PET scans were obtained to facilitate calculation of regional cerebral blood volume, O2 metabolism, blood flow, and O2 extraction fraction (OEF). Patients were given hyperventilation therapy to decrease arterial CO2 by approximately 1 kPa (7.5 mm Hg) and the same sequence of PET scans was repeated. For each scanning ...
ABSTRACT Purpose 4D perfusion magnetic resonance imaging (MRI) with intravenous injection of contrast agent allows for a radiation-free assessment of regional lung function. It is therefore a valuable method to monitor response to treatment in patients with chronic obstructive pulmonary disease (COPD). This study was designed to evaluate its potential for monitoring short-term response to hyperoxia in COPD patients. Materials and Methods 19 prospectively enrolled COPD patients (median age 66y) underwent paired dynamic contrast-enhanced 4D perfusion MRI within 35min, first breathing 100% oxygen (injection 1, O2) and then room air (injection 2, RA), which was repeated on two consecutive days (day 1 and 2). Post-processing software was employed to calculate mean transit time (MTT), pulmonary blood volume (PBV) and pulmonary blood flow (PBF), based on the indicator dilution theory, for the automatically segmented whole lung and 12 regions of equal volume. Results Comparing O2 with RA conditions, PBF and
It depends on the degree of damage or cut. Certainly our body will compensate for that blood loss. More blood is lost if the cut is big. The body compensates for the gradual decrease in blood volume. The heart rate increases since the heart needs to pump much more just to maintain the normal blood volume and so the BP also increases. Now if the situation wont be given an attention, the blood volume decreases significantly and that could possibly lead to a more life threatening condition which is hypovolemic shock. When BP is obtained, it will be read below the normal level since the compensatory mechanism is no longer able to sustain the necessary blood volume of the body ...
Cleppien, Dirk Ernst, Lei Zheng, Claudia Falfán-Melgoza, Barbara Vollmayr, Wolfgang Weber-Fahr, and Alexander Sartorius. 2014. Regional Cerebral Blood Volume (Rcbv) Bias Voxel-Based Morphometry (Vbm) In An Animal Study. In Proceedings 22Nd Scientific Meeting, International Society For Magnetic Resonance In Medicine, 0943. Proceedings 22Nd Scientific Meeting, International Society For Magnetic Resonance In Medicine. http://www.ismrm.org/14/program_files/TP06.htm#TP605 ...
Cleppien, Dirk Ernst, Lei Zheng, Claudia Falfán-Melgoza, Barbara Vollmayr, Wolfgang Weber-Fahr, and Alexander Sartorius. 2014. Regional Cerebral Blood Volume (Rcbv) Bias Voxel-Based Morphometry (Vbm) In An Animal Study. In Proceedings 22Nd Scientific Meeting, International Society For Magnetic Resonance In Medicine, 0943. Proceedings 22Nd Scientific Meeting, International Society For Magnetic Resonance In Medicine. http://www.ismrm.org/14/program_files/TP06.htm#TP605 ...
TY - JOUR. T1 - Dynamic glucose enhanced (DGE) MRI for combined imaging of blood-brain barrier break down and increased blood volume in brain cancer. AU - Xu, Xiang. AU - Chan, Kannie W.Y.. AU - Knutsson, Linda. AU - Artemov, Dmitri. AU - Xu, Jiadi. AU - Liu, Guanshu. AU - Kato, Yoshinori. AU - Lal, Bachchu. AU - Laterra, John. AU - McMahon, Michael T.. AU - Van Zijl, Peter C.M.. N1 - Funding Information: NIH; Grant number: R01EB019934 (NIBIB), P50CA103175 (NCI), R01EB015032 (NIBIB), S10RR028955 (NCRR), R21EB018934 (NIBIB).. PY - 2015/12/1. Y1 - 2015/12/1. N2 - Purpose Recently, natural d-glucose was suggested as a potential biodegradable contrast agent. The feasibility of using d-glucose for dynamic perfusion imaging was explored to detect malignant brain tumors based on blood brain barrier breakdown. Methods Mice were inoculated orthotopically with human U87-EGFRvIII glioma cells. Time-resolved glucose signal changes were detected using chemical exchange saturation transfer (glucoCEST) MRI. ...
Lymphatic vessels filter and transport fluid away from tissues before returning it to the blood. This helps to maintain normal blood volume and pressure.
Download the cd1 cover of Trinity Blood Volume 2 R1 found in the DVD section of Cdcovers.cc / Worlds Largest CD Covers and DVD Covers Archive
4 out of 5 stars Bound by Blood Volume One introduces us to the famous vampire Dracula before he makes his hellish deal with Lucifer. Known down through history as a bloodthirsty monster, he actually began his reign as the equally bloodthirsty ruler, Vlad the Impaler. In Draculas time however, rulers had to be heavy…
P. W. G. Tasker; BLOOD VOLUME. Anesthesiology 1959; 20:900 doi: https://doi.org/10.1097/00000542-195911000-00048. Download citation file:. ...
A non-invasive system for measuring the concentration of an analyte, such as glucose, in an absorbing matrix is described. The system directs beams of light at the matrix using an analyte sensitive wavelength and an analyte insensitive wavelength. The principles of photoplethysmography are applied to measure the change in light intensity caused by matrix absorption before and after the blood volume change caused by the systolic phase of the cardiac cycle. The change in light intensity is converted to an electrical signal which is used to adjust the light intensity and as a measure of analyte concentration.
Coffee Ground Emesis & Hemoglobin Decreased & Hypervolemia Symptom Checker: Possible causes include Chronic Kidney Insufficiency. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.
Axitinib is a potent small-molecule receptor tyrosine kinase inhibitor that induces significant antiangiogenic responses, including rapid loss of tumor vascular potency with a decrease in tumor blood volume followed by a gradual decrease in microvessel density and ,90% loss of endothelial fenestration of the tumor vasculature (16, 17). These strong antiangiogenic responses contribute to the antitumor activity of axitinib but also raise questions as to how they will affect the pharmacokinetics and pharmacodynamics of more traditional cancer chemotherapeutics in a combination therapy setting. In the present study, we used rat 9L gliosarcoma, a highly vascularized tumor model (20, 21), to study the combination of daily axitinib administration with cyclophosphamide given on an every 6-day repeating, metronomic treatment schedule (11, 13). We found that the combination therapy induced sustained tumor growth stasis on initiation of drug treatment. However, the strong antiangiogenic effect of this drug ...
OBJECTIVES: In patients with large total blood volume contrast material (CM) dilution decreases coronary attenuation in CT coronary angiography (CTCA). As increased blood volume is well paralleled by body surface area (BSA) we assessed a BSA-adapted CM protocol to compensate for dilution effects.. METHODS: Low-dose CTCA with prospective ECG-triggering was performed in 80 patients with a BSA-adapted CM bolus ranging 40-105 ml and injection rate ranging 3.5-5.0 ml/s for a BSA of ,1.70 to ,2.5 m(2). Eighty control patients matched for BSA who had previously undergone routine CTCA with a fixed CM protocol of 80 ml at 5 ml/s served as reference group. The average vessel attenuation from the proximal right (RCA) and the left main coronary artery (LMA) was assessed. Correlation of BSA with vessel attenuation was assessed in both groups.. RESULTS: BSA-matching of all patients was successful (BSA-adapted group 1.98 +/- 0.15 m(2), range 1.66-2.39 m(2) versus reference group 1.98 +/- 0.17 m(2), range ...
In the 200 ml group, 10 min after the end of volume expansion, the increase in MSAP and CVP disappears, whereas ITBV, CI and SI increases remain unchanged and even shows for ITBV a trend toward increase. This suggest a post-expansion effect which is not observed on CVP values. In group 2 who had a higher baseline CVP and a lower volume expansion, the increases in MSAP, CVP, ITBV and SI observed at the end of volume expansion disappear 10 min later, suggesting the absence of a post-expansion effect when the baseline CVP is high and/or the volume infused is low. ...
Most women, especially first time mothers, have deficient knowledge about the normal physiological changes in pregnancy. In the third trimester, mothers are concerned about the changes in body weight, appearance and her complete blood count. It is not surprising if the mother is worried about blood disorders such as anemia.. All these can be attributed to the cardiovascular system changes in a pregnant woman which includes an increase of the blood volume for at least 30% (and possibly for as much as 50%.) An increase of the blood volume is needed by the mother to provide for adequate exchange of nutrients in the placenta and to provide for adequate blood to compensate for blood loss at birth.. In consequence, the increase of blood volume dilutes the blood components including the red blood cells, white blood cells and platelets. In response, these blood components also increase slightly. Iron intake is increased to address pseudoanemia and the needs of the fetus. What about the platelets? ...
Whenever one finds blood in the cage, or blood on a bird, the first thing to be done is to locate the source of the blood flow. While a bird can certainly bleed to death from an injury, they rarely do because avian blood clots quickly and effectively. Still, one must take immediate steps to staunch blood flow from a bird, as they have very little blood volume in their body. Losing more than 10% of this blood volume is considered unsafe.. Blood Volume in Birds. So, how much blood in inside of your bird? Birds normally have 6-11 mls of blood per 100 grams of body weight. So a cockatiel weighing 100 grams would have about 8-10 mls of blood in its body, and could therefore only afford to safely lose .8 to 1ml of its blood. This equates to about 8-10 drops of blood before the safety line has been crossed.. Each ml/cc equates to approximately 10 drops of fluid.. Keep in mind that the amount of blood in the cage may look to be a much larger quantity than it actually is, because it spreads. Take an eye ...
Blood-oxygenation-level-dependent (BOLD) fMRI has contributions from venous oxygenation and venous cerebral blood volume (CBV) changes. To examine the relative contribution of venous CBV change (ΔCBV(v)) to BOLD fMRI, BOLD and arterial CBV changes (ΔCBV(a)) to a 40-s forepaw stimulation in six α-chloralose anesthetized rats were measured using a magnetization transfer-varied ...
to them. The purpose of this study was to test the hypothesis that low-level physiological signals can be used to develop a machine-learning algorithm for tracking changes in central blood volume that will ...
The hematocrit (Ht) is the percentage of erythrocytes to total blood volume in the blood stream. In the blood this figure is considered to be an integral part of it, along with the hemoglobin, leukocytes and platelets. Because the purpose of erythrocytes is to transport oxygen from the lungs to the tissues of the body, Ht is a measure of the ability of blood to perform its main function. ...
Williams, Scott (3 April 2002). "Blood Volume Determination". auntminnie.com. Retrieved 15 September 2016. Lombardi, Max H ( ...
"Volumes of Blood". Owensboro Living Magazine. Retrieved December 20, 2016. Baldwin, Daniel. "Nightmares Film Festival Debuts ' ... Allan Bryce, Amicus: The Studio That Dripped Blood, Stray Cat Publishing, 2000 p 126-137 Ed. Allan Bryce, Amicus: The Studio ... Allan Bryce, Amicus: The Studio That Dripped Blood, Stray Cat Publishing, 2000 p 93 Milne, Tom. Willemin, Paul. Hardy, Phil. ( ... That Dripped Blood, Stray Cat Publishing, 2000 p 50-55 Donald Guarisco. "Torture Garden (1967)". Allmovie. Retrieved 6 July ...
and dehydration (blood volume). Individual susceptibility to decompression sickness has components which can be attributed to a ... Perfusion is the mass flow of blood through the tissues. Dissolved materials are transported in the blood much faster than they ... A similar situation occurs between the blood and each tissue. As the concentration in the blood drops below the concentration ... Intravascular bubbles cause clumping of red blood cells, platelets are used up, white blood cells activated, vascular ...
and dehydration (blood volume). Individual susceptibility to decompression sickness has components which can be attributed to a ... The critical-volume criterion assumes that whenever the total volume of gas phase accumulated in the tissues exceeds a critical ... or may block a blood vessel, cutting off blood flow and causing hypoxia in the tissues normally perfused by the vessel. If a ... Blood flow to the muscles is also lower in cold water, but exercise keeps the muscle warm and flow elevated even when the skin ...
2012). Trunk, Volume Two: Blood. Boccalatte Publishing. OCLC 841848868. "Article Citations: Stelarc and Orlan in the Middle ... "Volume 7, Number 2". Critical Studies in Fashion & Beauty. Ingenta. 1 December 2016. Retrieved 8 May 2019. Jones, Meredith ( ... Books on Hair (reviewed in Fashion Theory: The Journal of Dress, Body & Culture) and Blood have been published by this imprint ... 2009). Trunk, Volume One: Hair. Boccalatte Publishing. ISBN 9780980631203. OCLC 669958039. Reinach, Simona Segre (2012). "Trunk ...
CS1 maint: discouraged parameter (link) Hamman, Cody (May 2, 2015). "Volumes of Blood (Movie Review)". JoBlo.com. Retrieved ...
"Blood + Volume 1: First Kiss (Novel)". Dark Horse Comics. Retrieved April 4, 2008. "Blood+ Game, Comics, & Novel Information" ( ... The tankōbon volumes of all three series were published by Kadokawa Shoten. Blood+, by Asuka Katsura, is a five-volume series ... The remaining volumes released every four months until the final volume was released on May 1, 2007. The second adaptation ... The first volume was released in Japan on May 1, 2006 by Kadokawa Shoten under their male oriented Kadokawa Sneaker Bunko label ...
"Blood + Volume 1: First Kiss (Novel)". Dark Horse Comics. Retrieved 2008-04-04. "Blood+ Game, Comics & Novels Information" (in ... The remaining volumes released every four months until the final volume was released on May 1, 2007. The second adaptation, ... The first volume was released in Japan on May 1, 2006 by Kadokawa Shoten under their male-oriented Sneaker Bunko label. ... It was released at the same time as Blood+, with the first volume released on May 1, 2006 and the second on September 1, 2006. ...
"Blood Will Tell". The Cattleman, Volume 41. 1954. Retrieved 17 June 2020. "Texas Parks and Wildlife Department". Retrieved 2 ... 1, Volume 59 ed.). New York Public Library: W.A. Smith. p. 678. Retrieved 19 April 2020. The Lumber Trade Journal (Volume 70 No ... As of 2020, vacant Leesville land not yet developed, sold at $4,649 per acre; based on recent volume-land sales data of more ... Valuation reports, Volume 36. U.S. Government Printing Office, 1932. San Antonio Express. (San Antonio, Tex.), Vol. 48, No. 194 ...
CS1 maint: discouraged parameter (link) Smith, Jerry (December 13, 2016). ""VOLUMES OF BLOOD: HORROR STORIES" (Film Review)". ... CS1 maint: discouraged parameter (link) "Blood of the Tribades (2016)". AllMovie. Retrieved March 13, 2017. CS1 maint: ...
Angerville, H. (1959). Living descendants of blood royal, Volume 1. Madison: World Nobility and Peerage. Foster 1883, p. 93. " ... in the Possession of Miss Pfarington, of Worden Hall, Volume 19. Chetham Society. p. 89. "John HUSSEY (1st B. Hussey of ... Stackpole, E.S. (1916). History of New Hampshire, Volume 1. New York - American Historical Society (New Hampshire). Retrieved 6 ... Moule, Thomas (1837). "The English Counties Delineated, Volume 2". Virtue. p. 192. Retrieved 4 November 2017. He was created ...
O'Kelly, Patrick (10 September 2004). Nothing but Blood and Slaughter, volume 2. Continental Army Payroll Records, 1779, Book ...
As blood volume increases, pressure also increases. Transepithelial potential difference driving reabsorption. ... Renin-angiotensin system: The kidneys sense low blood pressure. Release renin into the blood. Renin causes production of ... This happens as a result of sodium transport from the lumen into the blood by the Na+/K+ATPase in the basolateral membrane of ... and returns them to the circulating blood. It is called reabsorption (and not absorption) both because these substances have ...
... of circulating blood volume. In the micro-g environment, the newly sensed excess blood volume is adjusted by expelling excess ... A weakened heart can result in low blood volume, low blood pressure and affect the body's ability to send oxygen to the brain ... The decrease in cardiac filling pressure and stroke volume during the orthostatic stress due to a decreased blood volume is ... venous blood will rush to the right atrium because the force of gravity is no longer pulling the blood down into the vessels of ...
Dave Copeland (2007). Blood and Volume: Inside New York's Israeli Mafia. Fort Lee, N.J.: Barricade Books. ISBN 978-1-56980-327- ... The Qarajah crime family, also originated from Ramla, was used to have a long time blood feud with the Jarushis, resulting in ... A cold-blooded crime in Mexico City]. El Pais (in Spanish). Madrid. Retrieved July 31, 2019. "Erez Akrishevsky, el mafioso ...
This increases the blood volume and blood pressure.[citation needed] Heart failure also limits the kidneys' ability to dispose ... The increased peripheral resistance and greater blood volume place further strain on the heart and accelerates the process of ... A reduced stroke volume may occur as a result of a failure of systole, diastole or both. Increased end systolic volume is ... This increase in volume or pressure backs up to the left atrium and then to the pulmonary veins. Increased volume or pressure ...
The amount of ethanol in the body is typically quantified by blood alcohol content (BAC); weight of ethanol per unit volume of ... In fasting volunteers, blood levels of ethanol increase proportionally with the dose of ethanol administered. Blood alcohol ... Death from ethanol consumption is possible when blood alcohol levels reach 0.4%. A blood level of 0.5% or more is commonly ... The volume of distribution of ethanol is around .55 L/kg (0.53 US pt/lb). It is only weakly or not at all plasma protein bound ...
volume= has extra text (help) Blood, Doris (1980a). Cham literacy: the struggle between old and new (a case study). Notes on ... Blood, Doris E. "The Script as a Cohesive Factor in Cham Society". In Notes from Indochina on ethnic minority cultures. Ed. ... Blood, Doris E. 2008. The ascendancy of the Cham script: how a literacy workshop became the catalyst. International Journal of ... Volume 7 of Publications de l'École française d'Extrême-Orient. E. Leroux. Retrieved 2011-05-15. , ...
He is known for his work on the series The Walking Dead and the film Volumes of Blood: Horror Stories. Moseley was born in ... "Interview: Moses Moseley (Volumes of Blood: Horror Stories)". horrornews.net. Retrieved 2019-12-05. "Moses J Moseley". ... "Interview: 'The Walking Dead's' Moses J. Moseley Chats About Upcoming 'Volumes of Blood' Sequel". weareindiehorror.com. ...
Nothing But Blood and Slaughter: Volume Two, 1780. Blue House Tavern Press. ISBN 1-59113-588-5. Pancake, John (1985). This ...
"Cerebral Blood Flow, Blood Volume and Oxygen Utilization". Brain. 113: 27-47. doi:10.1093/brain/113.1.27. PMID 2302536. Marner ... blood. The other main component of the brain is grey matter (actually pinkish tan due to blood capillaries), which is composed ... Men have more white matter than women both in volume and in length of myelinated axons. At the age of 20, the total length of ... Smaller volumes (in terms of group averages) of white matter might be associated with larger deficits in attention, declarative ...
Increase blood volume Fludrocortisone (Florinef)[94] Vasopressin receptor antagonist Helps retain water, Increase blood volume ... Many people with POTS exhibit low blood volume (hypovolemia), which can decrease the rate of blood flow to the heart.[20] To ... Improve blood vessel contraction Droxidopa (Northera)[109][110] Alpha-2 adrenergic antagonist Increase blood pressure Yohimbine ... Fludrocortisone may be used to enhance sodium retention and blood volume, which may be beneficial not only by augmenting ...
This protein is involved in regulation of blood pressure and red blood cell volume, and Yoda1 is used in scientific research in ... "Piezo1 links mechanical forces to red blood cell volume". eLife. 4: e07370. doi:10.7554/eLife.07370. PMC 4456639. PMID 26001274 ... "Red blood cell Gardos channel (KCNN4): The essential determinant of erythrocyte dehydration in hereditary xerocytosis". ... "Endothelial cation channel PIEZO1 controls blood pressure by mediating flow-induced ATP release". Journal of Clinical ...
Arteries in the penis dilate to increase blood volume. Detumescence is the reversal of this process, by which blood leaves the ... Tumescence usually refers to the normal engorgement with blood (vascular congestion) of the erectile tissues, marking sexual ...
self-published source] Melville, Henry Massue Ruvigny et Raineval (1905). Plantagenet Roll of the Blood Royal: The Clarence ... Volume. Genealogical Publishing Com. p. 467. ISBN 0-8063-1432-X. Lundy, Darryl (8 May 2009). "Rt. Hon. Sir Henry Primrose". www ...
The Plantagenet Roll of the Blood Royal, Essex Volume. Genealogical Pub. Co. 1994. Sources This article incorporates text from ...
Horses are used because of the large blood volume. The final antivenom product expires after 5 years and needs to ... Calciseptine relaxes precontracted rat (thoracic) aorta and decreases blood pressure drastically. The decrease in blood ... Because of their activity as a relaxant, they can relax smooth muscles surrounding blood vessels, thus widening them and ... These antibodies are collected and purified from the blood and then packaged in mostly a liquid form. ...
Theobromine (12%): Dilates blood vessels and increases urine volume. Theobromine is also the principal alkaloid in the cocoa ... 2 Volume Set. Volume 1. New York: John Wiley & Sons. pp. 557-558. ISBN 978-1-118-84547-9. Table 34-12... Caffeine Intoxication ... Peak blood concentration is reached within 1-2 hours. It is eliminated by first-order kinetics. Caffeine can also be absorbed ... Caffeine can be quantified in blood, plasma, or serum to monitor therapy in neonates, confirm a diagnosis of poisoning, or ...
... pathway to increase blood pressure. Hydrochlorothiazide is a diuretic and decreases overall blood volume. Amlodipine/benazepril ... Although rare, amlodipine overdose toxicity can result in widening of blood vessels, severe low blood pressure, and fast heart ... In the blood it has high plasma protein binding of 97.5%. Its long half-life and high bioavailability are largely in part of ... Serious side effects may include low blood pressure or heart attack. Whether use is safe during pregnancy or breastfeeding is ...
The Plantagenet Roll of the Blood Royal: Clarence Volume.(1905), reprinted 1994. (Limited availability online via pp. 457-458) ...
Brown, Rawdon (1519). Calendar of State Papers Relating to English Affairs in the Archives of Venice Volume 2. London: Her ... Gristwood, Sarah (2013). Blood Sisters: The Women Behind the Wars of the Roses. New York: Basic Books. pp. 126-35.. ... Gristwood, Sarah (2013). Blood Sisters: The Women Behind the Wars of the Roses. New York: Basic Books. pp. 195-6.. ... Gristwood, Sarah (2013). Blood Sisters: The Women Behind the Wars of the Roses. New York: Basic Books. pp. 257-9.. ...
... intracranial blood and cerebrospinal fluid.[21] The sum of volumes of these three elements is constant.[21] An increase in one ... The volume of blood in the cranial vault is auto-regulated by the brain, and will therefore not decrease that easily.[21] ... The response involves vasodilatation of the cranial vault blood vessels, increasing the volume of one of the elements in the ... This causes an increase in the intracranial blood volume, thereby causing an increase in intracranial pressure.[23] ...
... are white blood cells that secrete large volumes of antibodies. They are transported by the blood plasma and the lymphatic ... The most immature blood cell that is considered of plasma cell lineage is the plasmablast.[3] Plasmablasts secrete more ... Frigyesi I (Jan 2014). "Robust isolation of malignant plasma cells in multiple myeloma". Blood. 123 (9): 1336-40. doi:10.1182/ ... Once released into the blood and lymph, these antibody molecules bind to the target antigen (foreign substance) and initiate ...
volume=. has extra text (help). *. Whaley, Joachim (2012). Germany and the Holy Roman Empire. Volume II: The Peace of ... The Emperor had to be male and of noble blood. No law required him to be a Catholic, but as the majority of the Electors ... volume=. has extra text (help). *. Wilson, Peter H. (2016). The Holy Roman Empire: A Thousand Years of Europe's History. London ... Whaley, Joachim (2012). Germany and the Holy Roman Empire: Volume I: Maximilian I to the Peace of Westphalia, 1493-1648. pp. 17 ...
Intensive blood sugar lowering (HbA1c,6%) as opposed to standard blood sugar lowering (HbA1c of 7-7.9%) does not appear to ... CS1: long volume value. *CS1 maint: multiple names: authors list. *Wikipedia indefinitely semi-protected pages ... Blood pressure lowering. Many international guidelines recommend blood pressure treatment targets that are lower than 140/90 ... and maintaining blood glucose levels in the normal range.[25] Self-monitoring of blood glucose for people with newly diagnosed ...
... bodies are elevated in the blood (ketosis) after fasting, including a night of sleep; in both blood and urine in ... volume 1, p. 40. From page 40: "Zu diesen Syndesmiden scheinen auch diejenigen Verbindungen zu gehören, die als Acetone im ...
"Debunking 'Ordering the vegetarian meal? There's more animal blood on your hands.'". All Animals Australia. 2014-11-12. ... ISBN 978-0-9599951-3-8 (2 volumes). *Archer, M. and Clayton, C. (Eds.) (1984). Vertebrate Zoogeography & Evolution in ... "Ordering the vegetarian meal? There's more animal blood on your hands". The Conversation. Archived from the original on 2016- ...
The brain detects insulin in the blood, which indicates that nutrients are being absorbed by cells and a person is getting full ... Since small mammals have a high ratio of heat-losing surface area to heat-generating volume, they tend to have high energy ... The brain checks for glucoprivation on its side of the blood-brain barrier (since glucose is its fuel), while the liver ...
The blood was central to Fludd's conception of the relationship between the microcosm and macrocosm; the blood and the Spirit ... Tita French Baumlin, "Robert Fludd," The Dictionary of Literary Biography, Volume 281: British Rhetoricians and Logicians, 1500 ... Allen G. Debus, Robert Fludd and the Circulation of the Blood, J Hist Med Allied Sci (1961) XVI (4): 374-393. doi: 10.1093/ ... Likewise, the blood of man carried the Spirit of the Lord (the same Spirit provided by the sun), and circulated through the ...
A 2015 study of users in the United States also found elevated blood lead levels in 40 percent of those tested. Other concerns ... Volume 122. pp. 393-412. doi:10.1016/S0079-6123(08)62153-6. ISBN 9780444500496. . PMID 10737073.. ...
High-speed or superspeed centrifuges can handle larger sample volumes, from a few tens of millilitres to several litres. ... Separation of urine components and blood components in forensic and research laboratories ... Microcentrifuges are used to process small volumes of biological molecules, cells, or nuclei. Microcentrifuge tubes generally ... Additionally, while microcentrifuges and supercentrifuges separate particles in batches (limited volumes of samples must be ...
Rejecting the common notions of his time that the use of breathing is to cool the heart, or assist the passage of the blood ... London = volume III: F., C. & J. Rivington. p. 1199. Holmyard, Eric John (1931). Makers of Chemistry. Oxford: Oxford University ... and supposed that the lungs separate it from the atmosphere and pass it into the blood. It is also necessary, Mayow inferred, ... with the combustible particles in the blood, and is further formed by the combination of these two sets of particles in muscle ...
The story in each volume follows the corresponding volume of the novels. The first eight volumes were translated into German by ... Hakuoki: Record of the Jade Blood (2010). *Starry Sky (2010-2011). *Dragon Crisis! (2011) ... The first eight volumes were republished in five omnibus volumes in Japan between April and July 2010.[40][41] ... was later included in volume 18 of the novels, Premium Book,[49] and the other five were later published in volume 26 of the ...
"Doctor Who: Series 5 Volume 4 (Blu-Ray)". BBCshop. Retrieved 18 June 2010.. ... "The Hungry Earth" / "Cold Blood". *"Vincent and the Doctor". *"The Lodger". *"The Pandorica Opens" / "The Big Bang" ... "Doctor Who: Series 5 Volume 4 (DVD)". BBCshop. Retrieved 18 June 2010.. ...
"J Cereb Blood Flow Metab. 30 (5): 985-93. doi:10.1038/jcbfm.2009.269. PMC 2949183. PMID 20029452.. ... This necessitates frequent recalibration of the remaining dose (determination of activity per unit volume) and careful planning ... Changing of regional blood flow in various anatomic structures (as a measure of the injected positron emitter) can be ... What is actually measured indirectly is the flow of blood to different parts of the brain, which is, in general, believed to be ...
The widespread bleeding that occurs in affected people causes swelling and shock due to loss of blood volume.[94] The ... This may cause vomiting blood, coughing up of blood, or blood in stool.[32] Bleeding into the skin may create petechiae, ... Blood products such as packed red blood cells, platelets, or fresh frozen plasma may also be used.[135] Other regulators of ... Intensive care is often used in the developed world.[33] This may include maintaining blood volume and electrolytes (salts) ...
Volume 1: Ostrich to Ducks. Oxford University Press. ISBN 9780198573586. .. *^ Dunning, John B. Jr., ed. (1992). CRC Handbook ... but the bill of ducks is supplied with a few blood vessels to prevent heat loss,[42] and, as in the Greenland mallard, the bill ... International Wildfowl Inquiry Volume i Factors Affecting the General Status of Wild Geese and Wild Duck. Cambridge University ... Piggott, Stuart; Thirsk, Joan (2 April 1981). The Agrarian History of England and Wales: Volume 1, Part 1, Prehistory. CUP ...
Barbara Ehrenreich (1997). Blood Rites: Origins and History of the Passions of War. London, United Kingdom: Macmillan. ISBN 0- ... Volume 3. Berlin; Heidelberg; New York: Springer-Verlag. p. 1944. (PRINT: ISBN 978-3-540-32474-4 ONLINE: ISBN 978-3-540-33761-4 ... The minor excursion is a "stadial"; times between stadials are "interstadials". Each glacial advance tied up huge volumes of ...
Volume 1.. Also in: Timothy Snyder; Ray Brandon (2014). Stalin and Europe: Imitation and Domination, 1928-1953. Oxford ... "the fate of the Jews as a sort of blood bond to tie the civil and military leadership to the Nazi cause".[127] ...
The second volume, Pillar of Fire: America in the King Years, 1963-65, was published in 1998. It covers such events as the ... Blood in the Water by Heather Ann Thompson (2017). *The Gulf by Jack E. Davis (2018) ... A one-volume summary of Branch's trilogy, The King Years: Historic Moments in the Civil Rights Movement was published by Simon ... The titles of the three volumes, Parting the Waters, Pillar of Fire, and At Canaan's Edge, were all drawn from aspects of the ...
Fillers are used to increase natural collagen production in the skin and to increase skin volume and decrease the depth of acne ... ductus arteriosus blood vessel.[47][150] Prolonged use of salicylic acid over significant areas of the skin or under occlusive ...
eds.). Cochlear Blood Flow Changes With Short Sound Stimulation. Scientific basis of noise-induced hearing loss. New York ... When the volume of music is higher, these artifacts become more apparent, and because they are uncomfortable for the ear, cause ... At first glance, it would seem that reducing the noise and volume would be sufficient to reduce or prevent listening fatigue ... With the resultant oxygen tension and diminished blood supply reaching the outer hair cells, their response to sound levels is ...
Sometimes an underlying medical condition is sought, and this may include blood tests for full blood count and hematinics. If a ... Coulthard P, Horner K, Sloan P, Theaker E (2008). Master dentistry volume 1, oral and maxillofacial surgery, radiology, ... in persons with blood group O and in non-secretors of blood group antigens in saliva. Increased rates of Candida carriage are ...
This can be very little blood (less blood than a normal menses.) It can be very much blood (much more than a normal menses.) ... Susan A. Cohen: Abortion and Women of Color: The Bigger Picture, Guttmacher Policy Review, Summer 2008, Volume 11, Number 3 ... The woman passes the fetus, along with the blood and tissue that have built up in the uterus, from her vagina.) ... But if it is less than 12 weeks old a woman may not see anything but blood. ...
1 g of liquid water has a volume of 1 cm³, so 1 kg has a volume of 1 L, and so 2×1018 kg has a volume of 2×1018 L, which is ... doi:10.1016/j.cell.2021.06.02: Convalescent serum (i.e. antibodies in blood from people previously infected) of people who had ... No, since km is a unit of length and gallons is a unit of volume. --OuroborosCobra (talk) 03:20, 4 August 2021 (UTC) I recall ... Again according to Wikipedia, The total volume of water on Earth is estimated at 1,386,000,000 km³. So the water in the ...
Main article: Alcohol by volume. The concentration of alcohol in a beverage is usually stated as the percentage of alcohol by ... Alcohol laws regulate the manufacture, packaging, labelling, distribution, sale, consumption, blood alcohol content of motor ... In the United States, proof is twice the percentage of alcohol by volume at 60 degrees Fahrenheit (e.g. 80 proof = 40% ABV). ... These misperceptions are attributed to two perceptual biases: (1) Estimating that tall, slender glasses have more volume than ...
a b c d e Demografia médica no Brasil: Volume 1 (Medical demography in Brazil: volume 1) http://portal.cfm.org.br/images/ ... In 1999, quality control of the transfused blood consisted of 26 coordinating centers and by 44 regional centers. ...
... where the blood remains inside blood vessels. Octopuses have three hearts; a systemic heart that circulates blood round the ... Boyle, P. R. (2013). "Neural Control of Cephalopod Behavior". In Dennis Willows, A.O. The Mollusca, Volume 8: Neurobiology and ... This makes the blood very viscous and it requires considerable pressure to pump it round the body; octopuses' blood pressures ... The blood circulates through the aorta and capillary system, to the vena cavae, after which the blood is pumped through the ...
As the body is unable to store fat correctly this leads to fat around all the vital organs and in the blood (triglycerides). ... 2-Volume Set. St. Louis: Mosby. pp. 1541-2, 1543. ISBN 1-4160-2999-0. James, William D.; Berger, Timothy G.; et al. (2006). ...
Sides, Blood and Thunder, p. 181. *^ William E. Connelley. A Standard History of Kansas and Kansans, Vol. I. Chicago: Lewis ... The Diary of David Zeisberger: A Moravian Missionary Among the Ohio Indians, Volume 1. Ulan Press, 2012. ASIN B00A6PBD82. ... Sides, Hampton, Blood and Thunder: An Epic of the American West, Doubleday (2006), pp. 77-80, 94, 101, hardcover, 462 pages, ... The Diary of David Zeisberger: A Moravian Missionary Among the Ohio Indians, Volume 2. Ulan Press, 2012. ASIN B009L4SVN4. ...
... with females and males having approximately the same blood volume. Blood volume is regulated by the kidneys. Blood volume (BV) ... Blood volume is the volume of blood (red blood cells and plasma) in the circulatory system of any individual. A typical adult ... Clinically, the unknown volume is the patients blood volume, with the tracer having been injected into the patients blood ... It is able to report Total Blood Volume (TBV), Plasma Volume (PV) and Red Cell Volume (RCV) using the indicator dilution ...
Cerebral blood volume has a close and positive correlation with cerebral blood flow. Both cerebral blood volume and cerebral ... Cerebral blood volume is the blood volume in a given amount of brain tissue. The typical human adults nerve skull contains ... There is a difference between the cerebral blood volume of gray and white matter. The cerebral blood volume value of gray ... The ischemic stroke will cause a substantial reduction in cerebral blood volume. The cerebral blood volume maps can be ...
Blood Volume. Br Med J 1964; 1 doi: https://doi.org/10.1136/bmj.1.5374.6 (Published 04 January 1964) Cite this as: Br Med J ...
When blood pressure is too low, it may be indicative of low blood volume, or other conditions. Increased blood volume can cause ... this process has an immediate impact upon blood volume.. The relationship between blood volume and blood pressure is an ... Blood Volume. As a general matter of health, optimum blood volume is essential to the proper function of the bodys ... The body regulates blood volume through the operation of the kidneys. When the kidneys determine that the blood volume is too ...
The Eisner-nominated MONSTRESS is back Maika, Kippa, and Ren journey to Thyria in search of answers to her past... and discover a new, terrible, threat. Collects MONSTRESS #7- ...
Prest, Thomas Preskett . Varney the vampire; or, The feast of blood. Volume 3 Electronic Text Center, University of Virginia ... Volume 3 VOLUME III *Chapter 132 CHAPTER CXXXII. *Chapter 133 CHAPTER CXXXIII. *Chapter 134 CHAPTER CXXIV. [Chapter 134] * ...
... and a time-zero blood portion volume is automatically calculated from the determined blood portion volumes and time intervals. ... A blood portion volume corresponding to each time interval is automatically determined from the tracer level in the mixed ... A tracer is injected into the blood stream of a living being, and a plurality of mixed samples of blood and tracer are removed ... from the blood stream at a corresponding plurality of measured time intervals subsequent to the injecting step. ...
Books of Blood: Volume Three (Books of Blood #3) by Clive Barker (Goodreads Author) Nikkus review Nov 07, 2009 ... Sign into Goodreads to see if any of your friends have read Books of Blood. ...
In an e-Blood article, Verbij et al identify the site of glycosylation on plasma ADAMTS13 and determine the composition of the ... Blood (www.bloodjournal.org), the most cited peer-reviewed publication in the field of hematology, is available weekly in print ... Blood is the official journal of the American Society of Hematology (ASH) (www.hematology.org), the worlds largest ... WASHINGTON, November 24, 2016 - Welcome to "This Week in Blood," a weekly snapshot of the hottest studies from each weeks ...
August 23, 2018 - Welcome to "This Week in Blood," a weekly snapshot of the hottest studies from each weeks issue of Blood, ... In this Blood Spotlight, Chow et al provide a state-of-the-art review of the role of CAR T cells in the therapy of relapsed/ ... Blood (www.bloodjournal.org), the most cited peer-reviewed publication in the field of hematology, is available weekly in print ... Blood is the official journal of the American Society of Hematology (ASH) (www.hematology.org), the worlds largest ...
Blood Volume Female -Nadler widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Health & Medicine widgets ... Blood Volume Female -Nadler. Added Jan 22, 2020 by castelan_jesus in Health & Medicine. Calculate your blood volume using ...
Exchange Transfusions: Blood Volume, Increment Volume, Efficiency Message Subject (Your Name) has sent you a message from ... Exchange Transfusions: Blood Volume, Increment Volume, Efficiency. RODERIC H. PHIBBS and ANN SPROUL ... the babys blood volume) by the removal of a fraction of that compartment and its replacement by an equal volume of diluent ( ... donor blood). This flushing process is repeated many times, usually until the total volume replaced is 2 to 3 times the volume ...
Download the app and start listening to The Books of Blood, Volume 2 today - Free with a 30 day Trial! Keep your audiobook ... Not as good as volume one, but still fantastic Where does The Books of Blood, Volume 2 rank among all the audiobooks youve ... books of blood volume 2 Good performance... wildly imaginative writing. i wish clive barker would do more like these three ... This first volume contains the short stories : The Book of Blood, The Midnight Meat Train, The Yattering and Jack, Sex, ...
Wonder Woman, Volume 1: Blood by Brian Azzarello (Writer), Cliff Chiang (Artist), Tony Akins (Artist), Dan Green (Inker), ... Lindsey Stocks Reviews , Wonder Woman, Volume 1: Blood. Want to Read saving… ... Sign into Goodreads to see if any of your friends have read Wonder Woman, Volume 1. ...
... and the high norepinephrine values observed in elderly smokers were not explained by changes in blood volume. Blood volume and ... It is well established that cardiac output depends on the level of the blood volume and decreases, for example, in response to ... Venous plasma noradrenaline increases with age: correlation to total blood volume and long-term smoking habits. Clin Physiol. ... we demonstrated that sympathetic activity was inversely related to the blood volume.3 Joyner et al1 demonstrated that muscle ...
VOLUME I by Tanya Huff a Paranormal book ISBN-0756403871 ISBN13-9780756403874 with cover, excerpt, author notes, review link, ... Blood Books, Volume II, August 2006. Paperback (reprint). The Blood Books, Volume I, July 2006. Paperback (reprint). Smoke and ... The Blood Books, Volume I Tanya Huff The Victory Nelson "Blood" Series. DAW. July 2006. On Sale: July 1, 2006. 560 pages ISBN: ... Blood Lines, January 1993. Paperback (reprint). Blood Trail, February 1992. Paperback (reprint). Blood Price, May 1991. ...
Assessment of volume state is difficult in hemodialysis patients. Whether continuous blood volume monitoring can improve the ... slopes of relative blood volume (RBV), RBV slope corrected for UFR and weight (volume index). ... Diagnostic utility of blood volume monitoring in hemodialysis patients.. Agarwal R1, Kelley K, Light RP. ... Volume excess was defined as values in the upper third of IVC diameter or lower third of IVC collapse on inspiration. Volume ...
... blood disorders - Answer: Well I did do some research and I chose the best sites for you to go to. ... ... Home › Q & A › Questions › How is blood volume tested?.... How is blood volume tested? And Q on Anemia with Syncope?. Asked. 1 ... I am interested in not only how the blood volume is tested, but in how low blood volume relates (or dosnt) to Anemia. I am ... When I asked my MD about blood volume he acted like it wouldnt be worthwhile to have it tested, but as usual- I find myself ...
Thought you might appreciate this item(s) I saw at Blood Coagulation & Fibrinolysis.. ...
Thought you might appreciate this item(s) I saw at Blood Coagulation & Fibrinolysis.. ...
Total exchangeable sodium and blood volume were measured in 126 diabetic patients without renal or heart failure, in 52 ... Blood volume (BV) was normal or sometimes slightly low in the diabetics with normal or high blood pressure and in essential ... Body sodium-blood volume state in nonazotemic diabetes mellitus Miner Electrolyte Metab. 1982 Jan;7(1):36-47. ... Total exchangeable sodium and blood volume were measured in 126 diabetic patients without renal or heart failure, in 52 ...
Volume 1 as its meant to be heard, narrated by Simon Vance, Dick Hill, Peter Berkrot, Jeffrey Kafer, Chet Williamson, Chris ... Everyones a Book of Blood What did you love best about The Books of Blood, Volume 1? ... The Books of Blood, Volume 1. By: Clive Barker Narrated by: Simon Vance,Dick Hill,Peter Berkrot,Jeffrey Kafer,Chet Williamson, ... This first volume contains the short stories : "The Book of Blood," "The Midnight Meat Train," "The Yattering and Jack," "Sex, ...
Central Blood Volume in Hypotensive Dialysis Patients. The safety and scientific validity of this study is the responsibility ... Registration of Central Blood Volume in Hypotensive Dialysis Patients - a Comparison of Thoracic Impedance and Central Venous ...
Study of blood flow properties (rheology) has attracted growing interest from clinicians in recent years. A United Kingdom ... Published in 1988: Study of blood flow properties (rheology) has attracted growing interest from clinicians in recent years. A ...
Could this be the end for Ai Sempai and Kai? Thinking she was one step closer to Kai, Sayaka finally opens up to him ...but Kai still has unfinished family business and everything is about to get very complicated! Yazawas original story is about t
Pratik Talati, Swati Rane, Jack Skinner, John Gore, Stephan Heckers, Increased hippocampal blood volume and normal blood flow ... Anterior-posterior cerebral blood volume gradient in human subiculum. Authors. *. Pratik Talati,. Corresponding author. * ... imaging to investigate cerebral blood volume (CBV) gradients of the hippocampal formation. We studied 14 healthy subjects and ... Increased hippocampal CA1 cerebral blood volume in schizophrenia, NeuroImage: Clinical, 2014, 5, 359. CrossRef ...
Volume 4, Number 3-September 1998 THEME ISSUE ICEID 1998 The Global Threat. Blood Safety On This Page ... The blood supply in industrialized countries is safer than ever. However, blood (a human tissue) is a natural vehicle for ... The parasite survives blood-banking conditions and is transmissible by transfusion of red blood cells and platelet concentrates ... Movement of transfusable blood and blood components between countries is relatively uncommon. However, infectious agents can ...
Each patient contributed to the 5-μl sample plus two other sample volumes. The 5-μl volume, which is the usual volume required ... The Effect of Blood Sample Volume on 11 Glucose Monitoring Systems. Zeina Yared, Khaled Aljaberi, Nancy Renouf, Jean-François ... The Effect of Blood Sample Volume on 11 Glucose Monitoring Systems. Zeina Yared, Khaled Aljaberi, Nancy Renouf, Jean-François ... The Effect of Blood Sample Volume on 11 Glucose Monitoring Systems Message Subject (Your Name) has forwarded a page to you from ...
The blood volume of an adult amounts approximately to 1/12 of the total body weight (e.g. 70 kg adult: 5-6 l blood). ... Blood Volume Substitution. The human body contains 50-60% water mainly in tissues and cells (e.g. a 70 kg adult carries 35-40 l ... Major losses of blood volume and body fluid (e.g. due to surgery or traumatic injuries) should be corrected immediately by ... blood volume substitutes (hydroxyethyl starch) and/or electrolytes to avoid organ malperfusion secondary to hypovolemia. ...
... reduction in cardiac output might be related more to the relocation of blood volume than to the absolute degree of blood volume ... Effect of hemodialysis on blood volume distribution and cardiac output.. M Chaignon, W T Chen, R C Tarazi, E L Bravo, S ... Effect of hemodialysis on blood volume distribution and cardiac output.. M Chaignon, W T Chen, R C Tarazi, E L Bravo and S ... Effect of hemodialysis on blood volume distribution and cardiac output.. M Chaignon, W T Chen, R C Tarazi, E L Bravo and S ...
  • A sequel, entitled Volumes of Blood: Horror Stories, premiered on October 29, 2016 at the Owensboro Convention Center in Owensboro, Ky. (wikipedia.org)
  • WASHINGTON, November 24, 2016 - Welcome to "This Week in Blood," a weekly snapshot of the hottest studies from each week's issue of Blood , the official journal of the American Society of Hematology (ASH), hand-picked by Blood Editor-in-Chief Bob Löwenberg, MD, PhD, and Deputy Editor Nancy Berliner, MD. (bloodjournal.org)
  • the fraction of blood that is red blood cells) and plasma volume (PV), with the hematocrit being regulated via the blood oxygen content regulator: B V = P V 1 − H C {\displaystyle BV={\frac {PV}{1-HC}}} Blood volume measurement may be used in people with congestive heart failure, chronic hypertension, kidney failure and critical care. (wikipedia.org)
  • The 5-μl volume, which is the usual volume required by the manufacturer of most meters, was considered the reference for comparison with other volumes tested, thus excluding the confounding effects of hematocrit, humidity, hypotension, and hypoxia. (diabetesjournals.org)
  • Venous blood samples were collected before blue dye infusion and analyzed for hematocrit (corrected 4% for trapped plasma and venous to whole body hematocrit ratio) and hemoglobin. (unboundmedicine.com)
  • This article investigates the influence of surface glass aging, due to prolonged exposure to humid air, and hematocrit level, on the blood capillary rise. (bioportfolio.com)
  • The objective of this feasibility study is to characterize the performance of CHF Solutions' ultrafiltration system, the Aquadex FlexFlow® System with the hematocrit (HCT) feature in conjunction with Daxor's blood volume analyzer (BVA-100). (clinicaltrials.gov)
  • A third study "Peripheral Blood Hematocrit is an Inaccurate Index of Red Cell Volume in Critically Ill Subjects," evaluated the relationship between the peripheral Hct and normalized Hct generated by the BVA-100 as an indicator of red blood cell volume status. (yahoo.com)
  • Hematocrit rose from 41 ± 0.9 to 45 ± 0.4% at 40 min, at which time plasma volume had fallen from 4.7 ± 0.12 to 4.0 ± 0.05 ml/100 g body wt. (physiology.org)
  • changes in MAP, hematocrit, and plasma volume were monitored. (physiology.org)
  • Calculated hematocrit or hemoglobin can produce inaccurate results in patients who have abnormal red blood cell size and patients who are experiencing rapid fluid shifts. (novabiomedical.com)
  • The Stat Profile Prime Plus analyzer has both measured hemoglobin and measured hematocrit (along with blood gases, electrolytes, metabolites, and co-oximetry), and is uniquely capable of reporting ePV using the Strauss equation. (novabiomedical.com)
  • Prognostic impact of plasma volume estimated from hemoglobin and hematocrit in heart failure with preserved ejection fraction. (novabiomedical.com)
  • Relative cerebral blood volume measurement and MRS are helpful in differentiating low-grade from anaplastic oligodendroglial tumors. (nih.gov)
  • The researchers in this paper examined the agreement between only a single point and multiple points to achieve blood volume measurement, opening up an interesting area of research for Daxor. (yahoo.com)
  • We manufacture the BVA-100 Blood Volume Analyzer, the first instrument approved by the FDA to provide rapid direct measurement of a patient's blood volume. (yahoo.com)
  • in Critical Care Medicine (Volume 41, Number 12) concerning the use of blood samples as small as one ml. to obtain a blood volume measurement. (globenewswire.com)
  • The standard blood sample size for adults is between four to five ml and five to six samples are required for a blood volume measurement. (globenewswire.com)
  • The accurate measurement of blood loss both during surgery and in critically ill patients is very difficult to obtain. (globenewswire.com)
  • At the present time the BVA-100 blood volume analyzer is not used for blood volume measurement in infants or small children. (globenewswire.com)
  • The purpose of the research study was to determine if samples as small as one ml. (or 1/5th the usual sample size) could result in accurate measurement of blood loss in small pigs who weighed approximately 20 pounds. (globenewswire.com)
  • The studies showed that the blood volume analyzer was capable of providing an accurate measurement with a 97.6% concordance between the samples utilizing the usual adult size and the micro samples. (globenewswire.com)
  • Utilizing such a low dose would require modification of the injectate and standards provided for blood volume measurement. (globenewswire.com)
  • The main objective is to establish a statistical predictive model of the risk of intradialytic hypotension during hemodialysis (HD) or hemodiafiltration (HDF) sessions based on the measurement of residual blood volume and excess extracellular hydration. (centerwatch.com)
  • It will first be carried out a spectral analysis of heart rate variability (CHU of Clermont Ferrand only) and a measurement of intracellular and extracellular volumes by bioimpedancemetry. (centerwatch.com)
  • Timely, accurate measurement of plasma volume or overall volume status has been notoriously difficult if not impossible. (novabiomedical.com)
  • 1 Thus, many surrogates for volume status have been developed over the years, from simple non-invasive measures such as patient history and physical examination, weight, laboratory studies, and radiographic imaging, to more complex and invasive techniques such as CVP or pulmonary capillary wedge pressure measurement. (novabiomedical.com)
  • Nova uses biosensor technology in products ranging from handheld meters for glucose self- and point-of-care testing to critical care whole blood analyzers designed for stat measurement of over 22 analytes. (novabiomedical.com)
  • Transient displacement of blood in vessel lumen with saline injection is necessary in the conductance method for measurement of arterial cross-sectional area (CSA). (ebscohost.com)
  • Objective measures of extracellular volume have been proposed to aid in establishing the EDW (See volume measurement and imaging section below). (renalandurologynews.com)
  • e.g., extracellular fluid volume (ECFV) measurement by bioelectrical impedance, ultrasonic measurement of the inferior vena cava diameter and collapsibility upon inspiration, ultrasound measurement of lung water, and continuous intra-dialytic blood volume monitoring. (renalandurologynews.com)
  • We believe that the BVA-100 Blood Volume Analyzer has the potential to transform therapy in a broad range of surgical and medical conditions. (yahoo.com)
  • Deerfield Beach, FL -- ( SBWIRE ) -- 03/15/2017 -- The market research report by QY Research provides detailed study on the overall Automatic Blood Grouping Analyzer market size, its financial positions, its unique selling points, key products, and key developments. (sbwire.com)
  • This research report has segmented the Automatic Blood Grouping Analyzer market based on the segments covering all the domains in terms of type, country, region, forecasting revenues, and market share, along with analysis of latest trends in every sub-segment. (sbwire.com)
  • The qualitative segmentation of Automatic Blood Grouping Analyzer market covered in the report gives in-depth information of the overall market. (sbwire.com)
  • A deliberate profiling of major competitors of the Automatic Blood Grouping Analyzer market as well as a inclusive analysis of their current developments, core competencies, and investments in each segment are also elaborated in the research report. (sbwire.com)
  • The overall information of the Automatic Blood Grouping Analyzer market provided in the report helps our client to make precise and accurate decisions in order to gain maximum profit in this cutthroat competition in the global market. (sbwire.com)
  • Thus, the report provides in-depth information of the Automatic Blood Grouping Analyzer market in terms of revenue, value, volume, region, and many more. (sbwire.com)
  • This high degree of concordance is strong evidence that the blood volume analyzer can provide accurate measurements in situations where a microscopic dose might be sufficient. (globenewswire.com)
  • Daxor Corporation is an investment company with medical instrumentation and biotechnology operations which manufactures the BVA-100, the only FDA approved semi-automated blood volume analyzer. (globenewswire.com)
  • Waltham, MA - Nova Biomedical announces the addition of a key new test to its Stat Profile Prime Plus critical care analyzer-the ability to calculate and report estimated plasma volume (ePV), a very important test for critically ill patients but one that has been very difficult to obtain. (novabiomedical.com)
  • 3. The method of claim 1 wherein prior to step (D) the blood volume/time interval data is analyzed for general agreement, and any such data not in general agreement with the remainder of such data is disregarded in the determination of the time-zero blood volume. (google.ca)
  • 7. The method of claim 1 wherein said determination of a time-zero blood volume is made in real time. (google.ca)
  • Distribution of extracellular fluid loss from hemodialysis differed widely among patients, so that weight change correlated weakly with contraction of total blood volume (index of determination 29%, p less than 0.05). (ahajournals.org)
  • One study, "Reducing Blood Sampling for Circulating Blood Volume Determination: A Pilot Feasibility," showed a 97% agreement in critically-ill cohorts whose blood volumes were compared using one blood draw versus five blood draws. (yahoo.com)
  • automatically infusing an infusion solution into the patient in response to the determination of a low blood volume, and automatically adjusting the infusion to maintain the monitored condition at a predetermined value. (google.com)
  • Background: Determination of the intra vascular volume status of a critically ill surgical patient is paramount for appropriate fluid and cardiovascular management. (ebscohost.com)
  • Diagnostic utility of blood volume monitoring in hemodialysis patients. (nih.gov)
  • Assessment of volume state is difficult in hemodialysis patients. (nih.gov)
  • Volume-associated ambulatory blood pressure patterns in hemodialysis patients. (biomedsearch.com)
  • Although volume excess causes hypertension, whether it also affects circadian patterns of arterial pressures among hemodialysis patients remains unknown. (biomedsearch.com)
  • To test the notion of whether volume overload is associated with a unique blood pressure (BP) "signature," a posthoc analysis was performed among 145 patients participating in the Dry-Weight Reduction in Hypertensive Hemodialysis Patients randomized, controlled trial. (biomedsearch.com)
  • Randomized trials are now needed to evaluate the clinical impact of augmented volume removal therapy on hard outcomes, because reduction of pulse pressure with this simple expedient has the potential to improve survival in hemodialysis patients. (biomedsearch.com)
  • Finally, current clinical guidelines for the diagnosis and treatment of hypertension in hemodialysis patients are based on routine pre-dialysis systolic blood pressure. (renalandurologynews.com)
  • It is well established that cardiac output depends on the level of the blood volume and decreases, for example, in response to volume changes in the standing-up position. (ahajournals.org)
  • It is, therefore, likely that the interrelationship observed between cardiac output and sympathetic activity is at least in part explained by variations in the level of blood volume between different subjects. (ahajournals.org)
  • Effect of hemodialysis on blood volume distribution and cardiac output. (ahajournals.org)
  • Effects of hemodialysis on extracellular fluid volume distribution, left ventricular volumes, and cardiac output were determined in patients with end-stage renal disease (n = 19). (ahajournals.org)
  • There results suggest that, although intravascular volume was the major determinant of cardiac output in dialyzed patients, the postdialysis reduction in cardiac output might be related more to the relocation of blood volume than to the absolute degree of blood volume contraction. (ahajournals.org)
  • The contracted PV and BV may contribute to exercise intolerance, shortness of breath and chronic fatigue, secondary to reduced cardiac output or regional blood flow, or both. (unboundmedicine.com)
  • Blood volumes have also been measured in humans using the non-radioactive, carbon monoxide (CO) rebreathing technique for more than 100 years. (wikipedia.org)
  • Although CO gas in large volumes is toxic to humans, the volume used to access blood volumes corresponds to what would be inhaled when smoking one cigarette. (wikipedia.org)
  • I read with great interest the Hypertension Highlights article, "Sympathetic Nervous System and Blood Pressure in Humans. (ahajournals.org)
  • Sympathetic nervous system and blood pressure in humans. (ahajournals.org)
  • However, no proven cases of blood transmission are reported in humans, and accumulating epidemiologic information (surveillance, follow-up of recipients of blood from donors who subsequently developed CJD, and case-control data) indicates that the risk (if any) for transmission of CJD by blood products is extremely small. (cdc.gov)
  • In addition, biomarkers identified in blood should be easily translated from preclinical species to humans. (mdpi.com)
  • In an interview with Dread Central, producer P.J. Stark announced a second and final sequel called Devil's Knight: Volumes of Blood 3. (wikipedia.org)
  • Producers P.J. Starks, who first told us about DEVIL'S KNIGHT: VOLUMES OF BLOOD 3 here , and Eric Huskisson are currently in the process of securing directors for the movie. (rue-morgue.com)
  • STRATUS will evaluate the use of small-volume ("soft-draw") blood collection tubes for laboratory testing in reducing anemia and transfusion in intensive care unit patients without signifi. (bioportfolio.com)
  • 2 Augmenting the placental transfusion and increasing the newborn infant's blood volume by delaying cord clamping has been well documented for term infants. (aappublications.org)
  • 8 Reports on placental transfusion and measured newborn infants' blood volumes are very limited for preterm infants. (aappublications.org)
  • 15 , 16 Early cord clamping (ECC) at preterm delivery results in hypovolemia, 8 and placental transfusion may reduce the need for donor blood transfusion. (aappublications.org)
  • Doctors may also use a blood volume test before a blood transfusion, to check fluid levels before or after a medical procedure and to evaluate blood and fluid status before kidney dialysis. (calculatorpro.com)
  • Venous plasma noradrenaline increases with age: correlation to total blood volume and long-term smoking habits. (ahajournals.org)
  • Venous blood collected from 16 fasting patients with diabetes was used to test each meter brand in triplicate. (diabetesjournals.org)
  • compared blood volume analysis to conventional indices of euvolemia (BP, heart rate, urinary output) and/or endpoints of resuscitation (clearance of lactate, minimal/no vasopressors, or mixed venous oxygen saturation) to determine if euvolemia is achieved after multiple blood transfusions. (yahoo.com)
  • In a second series of experiments, splenic arterial and venous blood flows were simultaneously measured in anesthetized rats infused with LPS (150 μg ⋅ kg −1 ⋅ h −1 ). (physiology.org)
  • In a second series of experiments ( Study B ), the effect of LPS on fluid extravasation was investigated by simultaneously measuring splenic arterial and venous blood flows in anesthetized rats infused with the same low dose of LPS. (physiology.org)
  • Peripheral blood flow was measured in the supine position by venous occlusion strain-gauge plethysmography of the forearm and calf to subgroup patients. (physiology.org)
  • We studied the effect of positive end-expiratory pressure (PEEP) and blood volume on venous return and MSFP in pigs. (physiology.org)
  • Determining the Minimum Discard Volume for Central Venous Catheter Blood Draws. (ebscohost.com)
  • This study aimed to determine the minimum discard volume from central venous catheters (CVCs) to avoid dilution or contamination from flush or IV fluids. (ebscohost.com)
  • In normal subjects, ExNa or BV were unrelated to age or systolic or diastolic blood pressure. (nih.gov)
  • Augmented volume removal therapy reduced the intercept systolic BP and increased the rate of rise in systolic BP over the interdialytic interval but had no effect on the systolic BP fluctuation (amplitude). (biomedsearch.com)
  • Augmented volume removal therapy neither restored dipping nor was associated with a lag phenomenon for either the wake or the sleep systolic BP. (biomedsearch.com)
  • Results- Bivariate genomewide linkage analyses localized a significant quantitative trait locus influencing WB and regional (ependymal) HWM volumes and pulse pressure and systolic BP to chromosomal location 1q24 between markers D1S196 and D1S1619. (ahajournals.org)
  • 11 The amplitude of the pulsatile cerebrospinal fluid movements is linked to the pulse pressure (PP), the difference among arterial, systolic blood pressure (SBP)m and diastolic blood pressure (DBP). (ahajournals.org)
  • Routine dialysis unit systolic blood pressure measurements have significant limitations. (renalandurologynews.com)
  • Nexfin beat-to-beat arterial blood pressure monitoring enables continuous assessment of hemodynamic indices like cardiac index (CI), pulse pressure variation (PPV) and stroke volume variation (SVV) in the perioperative setting. (springer.com)
  • Hemodynamic parameters included arterial blood pressure (MAP), CI, PPV and SVV. (springer.com)
  • Pathophysiology studies have shown that the regional, ependymal, and subcortical HWM lesions are associated with elevated arterial pulse pressure and arterial blood pressure (BP), respectively. (ahajournals.org)
  • Principles around accurate blood volume collection using capillary action. (bioportfolio.com)
  • art ' for volume accuracy and precision but dimension of height and radius must be carefully chosen in order to exploit the capillary action behaviour efficiently. (bioportfolio.com)
  • It provides also the tools to correctly define the optimum capillary dimensions to collect an accurate volume of blood in a glass capillary. (bioportfolio.com)
  • Capillary rather than venipuncture may be a simpler and less invasive blood collection protocol that would increase the number of potential sampling tests. (bioportfolio.com)
  • Its goal is to enable retail pharmacies to offer laboratory-quality diagnostic testing through Babson Diagnostics' service by combining BD's innovative capillary blood collection device in development with Babson Diagnostics' proprietary automated sample handling and analytical technologies, which are also in development. (yahoo.com)
  • Babson Diagnostics will help bring BD's advanced capillary blood collection products to emerging health care settings, making laboratory-quality diagnostics more accessible to patients in the U.S. and around the world. (yahoo.com)
  • Septic patients experience multiple derangements including damage to the capillary vessels of the blood system. (globenewswire.com)
  • Such patients may experience a capillary leak syndrome which results in an acute shrinkage of their blood volume and a collapse of the circulatory system. (globenewswire.com)
  • Bloody stools, Anemia, Blood transfusions? (drugs.com)
  • Blood loss due to phlebotomy leads to hospital-acquired anemia and more frequent blood transfusions that may be associated with increased risk of morbidity and mortality in critically ill patients. (bioportfolio.com)
  • The normalized Hct has the potential for more accurate diagnosis of anemia and more informed fluid management thus reducing the risks and costs associated with unnecessary blood transfusions," said Michael Feldschuh, CEO of Daxor Corporation. (yahoo.com)
  • If fluids or blood transfusions are improperly withheld from patients who have extremely low blood volume (hypovolemia), the result can be irreversible organ damage or even death. (globenewswire.com)
  • Total exchangeable sodium and blood volume were measured in 126 diabetic patients without renal or heart failure, in 52 patients with essential hypertension and in 99 normal subjects. (nih.gov)
  • ExNa averaged 108% in the 63 diabetics with normal blood pressure, 111% in the 63 hypertensive diabetics and 99% in essential hypertension. (nih.gov)
  • Blood volume (BV) was normal or sometimes slightly low in the diabetics with normal or high blood pressure and in essential hypertension. (nih.gov)
  • Items related to Blood Vessel Changes in Hypertension Structure and. (abebooks.com)
  • Written by established researchers, this two-volume publication provides timely, comprehensive and insightful reviews on recent discoveries in the etiology of hypertension. (abebooks.com)
  • Structural changes of the blood vessels in hypertension in relation to connective tissue, cerebral vessel structure and innervation, smooth muscle cell hypertrophy and/or hyperplasia, and rarefaction of microvessels are discussed. (abebooks.com)
  • This book is of major interest to researchers involved in the study of hypertension and the biology of the blood vessels. (abebooks.com)
  • Based on the increase in blood CO after the rebreathing period, the volume of blood can be determined through the dilution principle (i.e. similar as the case for radioactive tracer methods). (wikipedia.org)
  • Since the relationship between blood volume, oxygen transport ability, and endurance performance became well established, athletes have used illegal methods to increase blood volume. (faqs.org)
  • Potential of MR methods for measuring cerebral blood volume. (ajnr.org)
  • Daxor labs have come up with a new method/technology for analyzing the blood volume of a patient, but the more "classical" methods have been around for quite a while and involve injecting a radioactive substance into the patient's blood stream and collecting samples to be analyzed at certain times after that. (dinet.org)
  • Methods- BP measurements and volumes of whole-brain (WB), subcortical, and ependymal HWM lesions, measured from high-resolution (1 mm 3 ) 3-dimensional fluid-attenuated inversion recovery images, served as focal quantitative phenotypes. (ahajournals.org)
  • Most whole blood RNA stabilization and isolation methods also require significant volumes of blood, limiting their effective use in small animal species, such as rodents. (mdpi.com)
  • that is 2 injections and 2 standards (51Cr-RBC for tagging red blood cells and I-HAS for tagging plasma volume) as well as withdrawing and re-infusing patients with their own blood for blood volume analysis results. (wikipedia.org)
  • These findings indicate that an increased ExNa associated with a normal circulatory volume is a common abnormality in patients with nonazotemic diabetes mellitus. (nih.gov)
  • The purpose of this study was to determine if long-term pharmacotherapy mediated changes in intravascular plasma and blood volumes in patients with chronic heart failure (CHF). (unboundmedicine.com)
  • Intravascular fluid volume expansion is an acute compensatory adaptation to ventricular dysfunction in patients with CHF. (unboundmedicine.com)
  • To our knowledge there are no reports on plasma and blood volume measures in clinically stable patients with CHF receiving standard pharmacotherapy. (unboundmedicine.com)
  • Our data indicate significantly lower intravascular volumes in patients with CHF than in control subjects, indicating a deconditioned state or excessive diuresis, or both. (unboundmedicine.com)
  • Our results provide preliminary support for the idea that severe sepsis patients may benefit from treatment at higher-volume specialty centers much the same as the reality that patients who've suffered severe injuries are brought to designated trauma centers and those who've had strokes typically come to certified stroke centers," Gaieski concluded. (mentalhelp.net)
  • Validation of a New Small-Volume Sodium Citrate Collection Tube for Coagulation Testing in Critically Ill Patients with Coagulopathy. (bioportfolio.com)
  • Do all POTS patients have low blood volume? (dinet.org)
  • But I think a significant percentage of POTS patients may have low blood volume. (dinet.org)
  • I know that in the CFS literature they are saying that a very large percent of those patients are chronically about a liter short on volume. (dinet.org)
  • Even after resuscitation, blood volume analysis showed euvolemia was only achieved in 30% of the patients. (yahoo.com)
  • This suggests that there are (at least) two subgroups within the normal P v group: a group of patients with increased blood flow and a group of patients with unchanged blood flow compared with control. (physiology.org)
  • There was significantly decreased blood flow in POTS patients with high P v ( middle right ) compared with control by ×2 and significantly increased leg blood flow in normal-P v POTS patients ( bottom left and bottom right ) compared with control subjects. (physiology.org)
  • In 2013, researchers discovered that patients with this disease have mutations in the gene that codes for the Piezo1 protein: a Piezo protein that has also been linked to a role in blood vessel development in embryos. (elifesciences.org)
  • Assessment of intravascular volume status and volume responsiveness in critically ill patients. (novabiomedical.com)
  • Intradialytic exercise-induced blood volume (BV) reduction may cause intradialytic hypotension in hemodialysis (HD) patients. (ovid.com)
  • The ability to measure cerebral blood volume (CBV) in an angiographic suite where it is possible to use immediately all available therapeutic techniques might, simply by saving time from initial assessment to intervention, add value to the management of patients with ischemic strokes. (ajnr.org)
  • In 93 adult patients with CVCs, minimum discard volume findings were 9 ml for tunneled and 6 ml for nontunneled catheters. (ebscohost.com)
  • 2002) Blood Volume Controlled Hemodialysis in Hypotension-Prone Patients A Randomized, Multicenter Controlled Trial. (scirp.org)
  • FRANKLIN LAKES, N.J. and AUSTIN, Texas , Feb. 12, 2020 /PRNewswire/ -- BD (Becton, Dickinson and Company) (NYSE: BDX), a leading global medical technology company and Babson Diagnostics, a transformative diagnostic blood testing company, today announced a long-term strategic partnership agreement to bring laboratory-quality, small-volume blood collection to retail pharmacies. (yahoo.com)
  • There also was no change in plasma volume, i.e., splenectomy prevented the hypotension and hemoconcentration customarily induced by LPS. (physiology.org)
  • A prominent feature of septic shock is the severe and intractable hypotension coupled with a primary reduction in circulating blood volume, which leads ultimately to circulatory collapse. (physiology.org)
  • The secondary objective is to study the impact of dysfunction in the mechanisms of compensation for decreased blood volume (heart disease, neuropathy, drugs) on the risk of intradialytic hypotension. (centerwatch.com)
  • 2-5 Increases in HWM volume are correlated with a decline in cerebral blood flow, 6 glucose metabolism, 7 and cognition. (ahajournals.org)
  • 11 - 13 Although currently available C-arm CT lacks the temporal resolution to assess cerebral blood flow (CBF) or mean transit time, it does provide spatial resolution and contrast sensitivity that should be adequate to measure levels of blood in brain parenchyma (ie, CBV). (ajnr.org)
  • Cerebral blood flow measurements and electroencephalograms during carotid endarterectomy. (thejns.org)
  • Cerebral blood flow me. (thejns.org)
  • Ninety-three endarterectomies for carotid stenosis were monitored with cerebral blood flow (CBF) measurements, and 113 with both CBF measurements and a continuous electroencephalogram (EEG). (thejns.org)
  • Greater amounts of oxygen are required to be transported by the red blood cells, along with greater demands internally for fluid, due to increased needs to cool the body through sweating. (faqs.org)
  • Major losses of blood volume and body fluid (e.g. due to surgery or traumatic injuries) should be corrected immediately by administrating infusion solutions, e.g. blood volume substitutes (hydroxyethyl starch) and/or electrolytes to avoid organ malperfusion secondary to hypovolemia. (fresenius-kabi.com)
  • Monitor blood volume changes during UF therapy as a potential mean to guide the removal of fluid in subjects hospitalized with acute decompensated heart failure (ADHF). (clinicaltrials.gov)
  • This paper presents a lumped-parameter model that can reproduce blood volume response to fluid infusion. (frontiersin.org)
  • The model is characterized by only three parameters: the target volume ratio, feedback gain (specifying the speed of fluid shift), and initial blood volume. (frontiersin.org)
  • This model can obviate the need to incorporate complex mechanisms involved in the fluid shift in reproducing blood volume response to fluid infusion. (frontiersin.org)
  • The ability of the model to reproduce real-world blood volume response to fluid infusion was evaluated by fitting it to a series of data reported in the literature. (frontiersin.org)
  • It was concluded that this simple model may accurately reproduce a variety of blood volume responses to fluid infusion throughout different physiological states by fitting three parameters to a given dataset. (frontiersin.org)
  • This offers a tool that can quantify the fluid shift in a dataset given the measured fractional blood volumes. (frontiersin.org)
  • These new data further substantiate that the BVA-100 is the most accurate means to establish blood volume, and helps guide physicians to effectively determine treatment options to manage fluid derangements and improve patient outcomes," said Michael Feldschuh, CEO of Daxor Corporation. (yahoo.com)
  • We conclude that during endotoxemia the initial fall in circulating blood volume may be attributed to fluid extravasation from the splenic vasculature. (physiology.org)
  • We have previously reported that the spleen may influence blood volume by controlling the efflux of protein-rich fluid from the intravascular compartment into the lymphatic system ( 6 , 23 , 24 ). (physiology.org)
  • We reasoned that if fluid extravasation from the splenic circulation does indeed contribute to the loss of fluid from the blood, splenectomy should reduce or prevent the hemoconcentration customarily observed after administration of LPS ( 7 , 34 ). (physiology.org)
  • Plasma volume is the amount of intravascular fluid minus red blood cells, white blood cells, and platelets. (novabiomedical.com)
  • A typical adult has a blood volume of approximately 5 liters, with females and males having approximately the same blood volume. (wikipedia.org)
  • Blood is a significant mass within the body, with an average volume for an adult of 51. (faqs.org)
  • For an elite-level endurance athlete, the blood volume may be 30% greater than that of the average adult. (faqs.org)
  • The blood volume of an adult amounts approximately to 1/12 of the total body weight (e.g. 70 kg adult: 5-6 l blood). (fresenius-kabi.com)
  • This amount is slightly more than one ounce of blood and is an insignificant loss of blood for an adult. (globenewswire.com)
  • Clinically, the unknown volume is the patient's blood volume, with the tracer having been injected into the patient's blood stream and tagged to the blood plasma. (wikipedia.org)
  • The researchers concluded that "conventional clinical parameters of intravascular volume status and resuscitation completion may not accurately reflect intravascular volume, as determined by blood volume analysis. (yahoo.com)
  • Volume index appears to be a novel marker of volume, but requires validation studies, and its utility needs to be tested in clinical trials. (nih.gov)
  • Many clinical parameters have been utilized to estimate intravascular volume but none are precise indicators of circulating blood. (ebscohost.com)
  • eg, home blood pressure monitoring (HBPM) and ambulatory blood monitoring (ABPM) may be more strongly associated to clinical outcomes. (renalandurologynews.com)
  • This process is crucial for many biological structures, such as blood vessels, to develop correctly, and is also a key part of our senses of touch and hearing. (elifesciences.org)
  • Red blood cells experience significant forces when they pass through narrow blood vessels. (elifesciences.org)
  • Four weeks after surgery, mice were perfused with silicone and the distribution of intraosseous blood vessels analyzed by μCT. (springer.com)
  • Congestive heart failure is a condition in which the heart is weakened and is unable to pump enough blood to the organs of the body to meet the demands of the body. (clinicaltrials.gov)
  • The plasma volume status of a patient is one of the top priorities in evaluating and treating many different conditions including, shock, sepsis, congestive heart failure, acute or chronic kidney disease, chronic pulmonary disease, as well as general postoperative care. (novabiomedical.com)
  • We studied the effects of autologous erythrocyte infusion on blood volume and thermoregulation during exercise in the heat. (unboundmedicine.com)
  • Co-Creators & Writers Michael R. Martin & Adam Orndorf give a fresh infusion of blood into the vampire genre with the Glenny Family. (firstcomicsnews.com)
  • BLOOD+DUST: VOLUME 1 Writer(s): Michael R. Martin & Adam Orndorf Artist Name(s): Roy Allan Martinez Cover Artist(s): Roy Allan Martinez Co-Creators & Writers Michael R. Martin & Adam Orndorf give a fresh infusion of blood into the vampire genre with the Glenny Family. (firstcomicsnews.com)
  • We determined therefore to investigate the effect of splenectomy on the changes in plasma volume and mean arterial pressure (MAP) induced by infusion of LPS ( 8 , 10 ). (physiology.org)
  • Blood pressure is a function of the amount of blood pumped by the heart and the degree of resistance to the flow of blood made by the arteries. (faqs.org)
  • Published in 1988: Study of blood flow properties (rheology) has attracted growing interest from clinicians in recent years. (routledge.com)
  • Spleen volume and blood flow response to repeated breath-hold apneas. (biomedsearch.com)
  • The purpose of this study was 1) to answer whether the reduction in spleen size in breath-hold apnea is an active contraction or a passive collapse secondary to reduced splenic arterial blood flow and 2) to monitor the spleen response to repeated breath-hold apneas. (biomedsearch.com)
  • Blood flow volume in the superior mesenteric artery (SMA) and brachial artery (BA), the heart rate and the blood pressure were measured at rest, 15 min after starting thermal stimulation and 10, 20, 30 and 40 min after completing thermal stimulation. (hindawi.com)
  • Blood flow parameters were measured by high-resolution ultrasound. (hindawi.com)
  • Thermal stimulation of the para-umbilical region increased blood flow in the SMA 20 min after stimulation in healthy subjects. (hindawi.com)
  • The purpose of this study is to correlate measurements to the passive flow of electricity generated by the heart within the chest (as measured by the Optivol TFS System) with measurements of the volume of blood in the body. (clinicaltrials.gov)
  • These endogenous chemical mediators exert their effects at the microcirculatory level to bring about changes in nutritional blood flow, microvascular permeability, and cell metabolism ( 20 ). (physiology.org)
  • We propose that postural tachycardia is related to thoracic hypovolemia during orthostasis but that the patterns of peripheral blood flow relate to different mechanisms for thoracic hypovolemia. (physiology.org)
  • The results support the hypothesis of (at least) three pathophysiologic variants of POTS distinguished by peripheral blood flow related to characteristic changes in regional circulations. (physiology.org)
  • MSFP has been estimated from inspiratory hold-induced changes in RAP and blood flow. (physiology.org)
  • during inspiratory holds shifts the right atrial pressure/pulmonary artery blood flow relationship to the right. (physiology.org)
  • Hence, the mean systemic filling pressure obtained via extrapolation of pressure-flow relationships with airway occlusion overestimates the mean systemic filling pressure measured during right atrial balloon occlusion at end-expiratory lung volume. (physiology.org)
  • The displacement of blood is dictated by the interactions between arterial flow hemodynamics and saline injection dynamics. (ebscohost.com)
  • Catheterization increases the mean flow resistance in the arterial blood flow and many other complications are associated with the presence of catheter in the. (ebscohost.com)
  • The degree of EEG change below this level during occlusion reflected the severity of reduced blood flow and was reversible with replacement of a shunt. (thejns.org)
  • The effect of variable blood sample volume on the accuracy of 11 glucose meters was studied to verify the reliability of self-monitoring of blood glucose. (diabetesjournals.org)
  • Chen ET, Nichols JH, Show-Hong D, Hortin G: Performance evaluation of blood glucose monitoring devices. (diabetesjournals.org)
  • Trajanoski Z, Brunner GA, Gfrerer RJ, Wach P, Pieber TR: Accuracy of home blood glucose meters during hypoglycemia. (diabetesjournals.org)
  • 11 , 17 , 18 DCC resulted in higher blood pressure and improved blood glucose homeostasis for preterm infants soon after birth, 19 and DCC may also reduce intraventricular hemorrhage among preterm infants. (aappublications.org)
  • With the addition of ePV, Prime Plus now helps clinicians assess patient intravascular volume, acid base balance, blood oxygenation, oxygen carrying capacity of blood, tissue hypoxia, electrolyte balance, kidney function, and glucose control in one minute from two drops of blood. (novabiomedical.com)
  • A review of the literature on the subject of blood volume changes following intravenous injections of hypertonic glucose solutions shows that the majority of investigators demonstrated an increase in the volume 12456 . (annals.org)
  • Two writers state that there is no change in the blood volume following glucose injections 37 . (annals.org)
  • The mechanics of the procedure are: a substance (bilirubin and/or antibody-coated red cells) is washed out of a compartment (the baby's blood volume) by the removal of a fraction of that compartment and its replacement by an equal volume of diluent (donor blood). (aappublications.org)
  • Our study demonstrates that screening donor blood for influenza A (H5N1) subtype or for influenza viruses in general by minipool nucleic acid amplification technique (NAT) is feasible. (cdc.gov)
  • Immediate clamping of the umbilical cord for animals (foals, infant rabbits/bunnies, and puppies) causes an approximately 30% to 50% reduction in the newborn animals' blood volume, compared with the prenatal fetoplacental blood volume, 1 as well as a pulmonary syndrome resembling respiratory distress syndrome (RDS). (aappublications.org)
  • The researchers concluded that "reducing blood sampling in BV analysis will result in more rapid reporting of test results with a corresponding reduction in the quantity of blood sampled, technician time and costs and this may further serve to increase the availability of this technology to more ICU's. (yahoo.com)
  • Volumes of Blood is a 2015 American horror anthology film directed by P.J. Starks (segment "Ghastly"), Jakob Bilinski (segment "13 After Midnight"), Nathan Thomas Milliner (segment "The Encyclopedia Satanica"), John Kenneth Muir (segment "A Little Pick Me Up"), and Lee Vervoort (segment "That's A Wrap! (wikipedia.org)
  • The latest anthology film to come across my desk is called Volumes Of Blood , and it has a fairly original setup to get it started: Four college students meet in a library to discuss their original ideas for creating their own "Urban Legends" - and each of their stories is a segment of the film. (horrornews.net)
  • Blood Moon Pictures is prepping the third in the VOLUMES OF BLOOD anthology-film series, and already has an ensemble of actors signed. (rue-morgue.com)
  • A significant correlation was found between total blood volume (TBV) and EDV before (r = 0.66, p less than 0.005) and after dialysis (r = 0.61, p less than 0.001). (ahajournals.org)
  • However, all are fraught with excessive variability and poor correlation with volume status. (renalandurologynews.com)
  • Ultrafiltration rate (UFR) divided by postdialysis weight (UFR index), slopes of relative blood volume (RBV), RBV slope corrected for UFR and weight (volume index). (nih.gov)
  • Mean volume index was -0.25% +/- 0.17%/h/mL/h ultrafiltration/kg. (nih.gov)
  • Ultrafiltration is an effective way to achieve EDW and lower blood pressure. (renalandurologynews.com)
  • Frequent blood sampling for laboratory testing can be an unnecessary source of blood loss in the critically ill oncology patient. (ebscohost.com)
  • The relationship between blood volume and blood pressure is an important one. (faqs.org)
  • The circulatory system, the interconnected series of arteries, veins, and capillaries through which blood flows in the body, has a number of internal mechanisms by which blood pressure is controlled. (faqs.org)
  • When blood pressure is too great, the heart is required to work harder than is desirable, among other effects. (faqs.org)
  • When blood pressure is too low, it may be indicative of low blood volume, or other conditions. (faqs.org)
  • Increased blood volume can cause a corresponding high blood pressure. (faqs.org)
  • BV was unrelated to blood pressure. (nih.gov)
  • The well-known physiological responses to apnea diving, i.e., bradycardia and increased blood pressure, were observed in A1 and remained unchanged throughout the following apneas. (biomedsearch.com)
  • The use of water in a closed constant volume container or capsule counterbalances at every point the pressure exerted by the body such that distortion of body tissues under ac- CONTROLLING THE VOLUlViE celerative stresses is greatly minimized, while the mechal 'cally supplies pressurized air between preselected limits to the lungs of the subject, so that :the pressure supplied to the lungs offsets the hydrostatic pressure of the vascular system. (google.es)
  • While blood circulation in the body is also improved by this means, a positive mechanism for aiding circulation is provided in the instant invention by directly varying the pressure of the water at the circulatory rate. (google.es)
  • Nexfin blood pressure measurements were performed during supine steady state, Trendelenburg and supine repositioning. (springer.com)
  • Controlling blood pressure and cholesterol are also important factors. (calculatorpro.com)
  • If you experience symptoms such as fainting, fatigue or a change in blood pressure or urine output, talk to your doctor. (calculatorpro.com)
  • Recent findings by Turner and colleagues 4 have identified overlap between genetic loci for the whole-brain (WB) HWM volume and blood pressure (BP) measurements in 488 hypertensive sibships. (ahajournals.org)
  • Blood pressure and heart rate will be measured every 30 minutes using an automatic blood pressure monitor and whenever the patient's nurse deems it necessary. (centerwatch.com)
  • The Q IVC nadir was lowest after bleeding [36% (SD 24%) of preinspiratory hold at 15 cmH 2 O inspiratory pressure], and the Q IVC recovery was most complete at the lowest inspiratory pressures independent of volume state [range from 80% (SD 7%) after bleeding to 103% (SD 8%) at PEEP 10 cmH 2 O of Q IVC before inspiratory hold]. (physiology.org)
  • Medwave Inc. has announced that researchers from Massachusetts General Hospital of Boston have presented the results of their study on the use of a radial artery compression device for non-invasive, near continuous blood pressure monitoring in the emergency department. (ebscohost.com)
  • Moreover, large inter and intra-patient variability has been reported, using routine dialysis unit blood pressure measurements. (renalandurologynews.com)
  • Furthermore, whether ABPM are the most reflective measures of a patient's true blood pressure remains controversial. (renalandurologynews.com)
  • Avoidance of large interdialytic weight gains and control of ECFV facilitate blood pressure control. (renalandurologynews.com)
  • Processed blood volume (PBV) required to obtain a predefined number of stem cells can be estimated from peripheral blood CD34+ cell concentration, body weight, and collection efficiency (CE). (bioportfolio.com)
  • Peripheral blood has obvious advantages for biomarker discovery due to its non-invasive collection and availability. (mdpi.com)
  • A number of studies have demonstrated that transcriptomic changes in peripheral blood can serve as biomarkers of exposure to xenobiotics or as biomarkers for pathological changes occurring in other tissues [ 5 - 8 ]. (mdpi.com)
  • Dialysis-related symptoms and echocardiographic signs of volume excess and volume depletion, assessed by using inferior vena cava (IVC) diameter after dialysis and its collapse on inspiration. (nih.gov)
  • It is able to report Total Blood Volume (TBV), Plasma Volume (PV) and Red Cell Volume (RCV) using the indicator dilution principle, microhematocrit centrifugation and the Ideal Height and Weight Method. (wikipedia.org)
  • Erythrocyte volume (RCV, 51Cr) and plasma volume (PV, 125I) were measured 24 h before each HST, and maximal O2 uptake (VO2max) was measured 24 h after each HST. (unboundmedicine.com)
  • The study showed a statistically significant mean bias between the two parameters and the researchers concluded that "the normalized Hct may be a better indicator of RBCV compared to the Hct, as it takes into account deviations in plasma volume. (yahoo.com)
  • Blood Volume Analysis: The use of radioactive tracer to determine plasma volume and red cell mass. (clinicaltrials.gov)
  • Although decreased plasma volume has been demonstrated with induction of septic shock, the role that the spleen might play has been ignored. (physiology.org)
  • ePV seems to be most beneficial when it is measured serially, and thus the change in plasma volume (∆PV) can be gauged. (novabiomedical.com)
  • Prognostic Value of Estimated Plasma Volume in Heart Failure. (novabiomedical.com)
  • Long‐term Prognostic Value of Estimated Plasma Volume in Heart Failure with Preserved Ejection Fraction. (novabiomedical.com)
  • 7. Marawan, A. and R. Qayyum, Estimated plasma volume and mortality: analysis from NHANES 1999‐2014. (novabiomedical.com)
  • Increase interval training intensity improves plasma volume variations and aerobic performances in response to intermittent exercise. (annals.org)
  • D) providing as input to such means plasma portions of the mixed samples, the hematocrits, and the time intervals and causing said means to automatically calculate the time-zero blood volume. (google.ca)
  • Calculate your blood volume using Nadler's formula. (wolframalpha.com)
  • Users of the BVA-100 currently have the option to calculate a multi-point blood volume using as few as three points, for those who want to shorten the time needed to get a result versus five samples. (yahoo.com)
  • To calculate the number of analytical tests and blood volume drawn during the first 24 h of admission to the Intensive Care Unit (ICU). (elsevier.es)
  • In the present study, we examined intraosseous blood vessel parameters of the tibial metaphysis in mice using microcomputed tomography (µCT) to investigate the relationship between post-nerve-injury osteoporosis and local intraosseous blood vessel volume and number. (springer.com)
  • The SCI group showed significantly reduced tibial metaphysis bone density, μCT bone microstructure, tibial biomechanical properties, indicators of angiogenesis, and intraosseous blood vessel parameters compared to the NX group. (springer.com)
  • Blood volume is the volume of blood (red blood cells and plasma) in the circulatory system of any individual. (wikipedia.org)
  • This calculator will help you get a general idea of how much blood is in your circulatory system. (calculatorpro.com)
  • Mammalian red blood cells (RBCs) are rather unique in that they lack a nucleus and many organelles and that they traverse the circulatory system several hundred thousand times in their life cycle. (elifesciences.org)
  • The concentration of the I-131 in the blood is determined from the blood radioactivity against the standard, which has a known I-131 dilution in a known volume. (wikipedia.org)
  • A multi-point method of determining a time-zero blood volume by the tracer dilution technique. (google.ca)
  • During rebreathing, CO binds to hemoglobin present in red blood cells. (wikipedia.org)
  • Erythrocytes are the red blood cells that contain hemoglobin, the protein that transports oxygen within the body, as well as carry the waste carbon dioxide produced by the body. (faqs.org)
  • A rapid decrease in spleen volume ( approximately 20% in both apnea divers and intact persons) was mainly completed throughout the first apnea. (biomedsearch.com)
  • TY - JOUR T1 - Influence of polycythemia on blood volume and thermoregulation during exercise-heat stress. (unboundmedicine.com)
  • 2005 ). However, the identification of individual sweat Na + losses during soccer practices and matches might lead to a correct replenishment of Na + that, ultimately, would help in maintaining blood volume , thermoregulation, and performance ( Del Coso et al. (humankinetics.com)
  • An equal amount of the tracer is injected into a known and unknown volume. (wikipedia.org)
  • Once the tracer is injected a technician takes five blood samples which undergo microhematocrit centrifugation to extrapolate true blood volume at time 0. (wikipedia.org)
  • A tracer is injected into the blood stream of a living being, and a plurality of mixed samples of blood and tracer are removed from the blood stream at a corresponding plurality of measured time intervals subsequent. (google.ca)
  • A tracer is injected into the blood stream of a living being, and a plurality of mixed samples of blood and tracer are removed from the blood stream at a corresponding plurality of measured time intervals subsequent to the injecting step. (google.ca)
  • P = 0.05) of blood for infected subjects. (asm.org)
  • Blood volume is regulated by the kidneys. (wikipedia.org)
  • The body regulates blood volume through the operation of the kidneys. (faqs.org)
  • When the kidneys determine that the blood volume is too high, water and sodium are excreted into the urine. (faqs.org)
  • Your kidneys are the major regulators of blood volume. (calculatorpro.com)
  • As blood volume rises, the kidneys receive a hormonal signal that tells them to cut back on water absorption. (calculatorpro.com)
  • If blood volume drops too low, the kidneys will absorb more to bring it back up. (calculatorpro.com)
  • If you smoke, are overweight or are largely sedentary, you may be compromising your kidneys' ability to keep your blood volume balanced. (calculatorpro.com)
  • Total Blood Volume can be measured manually via the Dual Isotope or Dual Tracer Technique, a classic technique, available since the 1950s. (wikipedia.org)
  • This flushing process is repeated many times, usually until the total volume replaced is 2 to 3 times the volume of the compartment itself. (aappublications.org)
  • Novel method for estimating the total blood volume: the importance of adjustment using the ideal body weight and age for the accurate prediction of haemodilution during cardiopulmonary bypass. (bioportfolio.com)
  • Although total blood volume (TBV) is central to the estimation of the haemodilution rate during cardiopulmonary bypass (CPB), conventional formulas lack sufficient accuracy. (bioportfolio.com)
  • The complete pool of up to 9.6 mL was centrifuged at 58,000× g for 60 min at 4°C. Viruses were extracted by using spin columns, and nucleic acid was eluted in a total volume of 75 μL. (cdc.gov)
  • Blood volume is a basic measure of the total volume of blood in your body, which includes red blood cells and plasma. (calculatorpro.com)
  • In the experiments conducted by the physicians a total of 29 pairs of blood volume measurements were made. (globenewswire.com)
  • Number of blood extractions, volume eliminated, useful volume and total volume. (elsevier.es)
  • To overcome these challenges, a QIAzol-based RNA stabilization and isolation method (QSI) was developed to isolate sufficient amounts of high quality total RNA from 25 to 500 μL of rat whole blood. (mdpi.com)
  • The QSI method yielded an average of 54 ng total RNA per μL of rat whole blood with an average RNA Integrity Number (RIN) of 9, a performance comparable with the standard PAXgene method. (mdpi.com)
  • Total RNA samples were further processed using the NuGEN Ovation Whole Blood Solution system and cDNA was hybridized to Affymetrix Rat Genome 230 2.0 Arrays. (mdpi.com)
  • Furthermore, the spinal cord-injured mice exhibited significantly decreased intraosseous blood vessel volume and number during the development of osteoporosis. (springer.com)
  • In conclusion, these data suggest that decreased intraosseous blood vessel volume and number may play an important role in the development of post-nerve-injury osteoporosis. (springer.com)
  • stroke volume (SV) decreased from 108 +/- 36 to 86 +/- 33 ml (p less than 0.001) without change in ejection fraction (from 0.73 +/- 0.09 to 0.74 +/- 0.11). (ahajournals.org)
  • Whether continuous blood volume monitoring can improve the assessment of volume state is unclear. (nih.gov)
  • The blood volume was significantly increased by DCC for infants delivered vaginally. (aappublications.org)