The volume of air that is exhaled by a maximal expiration following a maximal inspiration.
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.
Measurement of the various processes involved in the act of respiration: inspiration, expiration, oxygen and carbon dioxide exchange, lung volume and compliance, etc.
Measurement of volume of air inhaled or exhaled by the lung.
The rate of airflow measured during a FORCED VITAL CAPACITY determination.
Measurement of rate of airflow over the middle half of a FORCED VITAL CAPACITY determination (from the 25 percent level to the 75 percent level). Common abbreviations are MMFR and FEF 25%-75%.
The volume of air contained in the lungs at the end of a maximal inspiration. It is the equivalent to each of the following sums: VITAL CAPACITY plus RESIDUAL VOLUME; INSPIRATORY CAPACITY plus FUNCTIONAL RESIDUAL CAPACITY; TIDAL VOLUME plus INSPIRATORY RESERVE VOLUME plus functional residual capacity; or tidal volume plus inspiratory reserve volume plus EXPIRATORY RESERVE VOLUME plus residual volume.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
The volume of air remaining in the LUNGS at the end of a maximal expiration. Common abbreviation is RV.
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.
Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle.
The airflow rate measured during the first liter expired after the first 200 ml have been exhausted during a FORCED VITAL CAPACITY determination. Common abbreviations are MEFR, FEF 200-1200, and FEF 0.2-1.2.
Any disorder marked by obstruction of conducting airways of the lung. AIRWAY OBSTRUCTION may be acute, chronic, intermittent, or persistent.
The maximum volume of air that can be inspired after reaching the end of a normal, quiet expiration. It is the sum of the TIDAL VOLUME and the INSPIRATORY RESERVE VOLUME. Common abbreviation is IC.
The total volume of gas inspired or expired per unit of time, usually measured in liters per minute.
These include the muscles of the DIAPHRAGM and the INTERCOSTAL MUSCLES.
The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC.
Curves depicting MAXIMAL EXPIRATORY FLOW RATE, in liters/second, versus lung inflation, in liters or percentage of lung capacity, during a FORCED VITAL CAPACITY determination. Common abbreviation is MEFV.
Diseases of the respiratory system in general or unspecified or for a specific respiratory disease not available.
Pathological processes involving any part of the LUNG.
A disease of chronic diffuse irreversible airflow obstruction. Subcategories of COPD include CHRONIC BRONCHITIS and PULMONARY EMPHYSEMA.
Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. Common abbreviations are PEFR and PFR.
Any hindrance to the passage of air into and out of the lungs.
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 form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).
The act of BREATHING in.
Agents that cause an increase in the expansion of a bronchus or bronchial tubes.
The extra volume of air that can be expired with maximum effort beyond the level reached at the end of a normal, quiet expiration. Common abbreviation is ERV.
Measure of the maximum amount of air that can be breathed in and blown out over a sustained interval such as 15 or 20 seconds. Common abbreviations are MVV and MBC.
Difficult or labored breathing.
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 quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116)
Enlargement of air spaces distal to the TERMINAL BRONCHIOLES where gas-exchange normally takes place. This is usually due to destruction of the alveolar wall. Pulmonary emphysema can be classified by the location and distribution of the lesions.
Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.
A common interstitial lung disease of unknown etiology, usually occurring between 50-70 years of age. Clinically, it is characterized by an insidious onset of breathlessness with exertion and a nonproductive cough, leading to progressive DYSPNEA. Pathological features show scant interstitial inflammation, patchy collagen fibrosis, prominent fibroblast proliferation foci, and microscopic honeycomb change.
Inhaling and exhaling the smoke of burning TOBACCO.
Agents causing the narrowing of the lumen of a bronchus or bronchiole.
Complete or severe weakness of the muscles of respiration. This condition may be associated with MOTOR NEURON DISEASES; PERIPHERAL NERVE DISEASES; NEUROMUSCULAR JUNCTION DISEASES; SPINAL CORD DISEASES; injury to the PHRENIC NERVE; and other disorders.
Tests involving inhalation of allergens (nebulized or in dust form), nebulized pharmacologically active solutions (e.g., histamine, methacholine), or control solutions, followed by assessment of respiratory function. These tests are used in the diagnosis of asthma.
Inflammation of the large airways in the lung including any part of the BRONCHI, from the PRIMARY BRONCHI to the TERTIARY BRONCHI.
The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.
The exercise capacity of an individual as measured by endurance (maximal exercise duration and/or maximal attained work load) during an EXERCISE TEST.
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are TV or V with subscript T.
A process in which normal lung tissues are progressively replaced by FIBROBLASTS and COLLAGEN causing an irreversible loss of the ability to transfer oxygen into the bloodstream via PULMONARY ALVEOLI. Patients show progressive DYSPNEA finally resulting in death.
A diverse group of lung diseases that affect the lung parenchyma. They are characterized by an initial inflammation of PULMONARY ALVEOLI that extends to the interstitium and beyond leading to diffuse PULMONARY FIBROSIS. Interstitial lung diseases are classified by their etiology (known or unknown causes), and radiological-pathological features.
A general term encompassing lower MOTOR NEURON DISEASE; PERIPHERAL NERVOUS SYSTEM DISEASES; and certain MUSCULAR DISEASES. Manifestations include MUSCLE WEAKNESS; FASCICULATION; muscle ATROPHY; SPASM; MYOKYMIA; MUSCLE HYPERTONIA, myalgias, and MUSCLE HYPOTONIA.
An appreciable lateral deviation in the normally straight vertical line of the spine. (Dorland, 27th ed)
Measurement of the volume of gas in the lungs, including that which is trapped in poorly communicating air spaces. It is of particular use in chronic obstructive pulmonary disease and emphysema. (Segen, Dictionary of Modern Medicine, 1992)
A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.
A diffuse parenchymal lung disease caused by inhalation of dust and by tissue reaction to their presence. These inorganic, organic, particulate, or vaporized matters usually are inhaled by workers in their occupational environment, leading to the various forms (ASBESTOSIS; BYSSINOSIS; and others). Similar air pollution can also have deleterious effects on the general population.
Analogs or derivatives of scopolamine.
Care of patients with deficiencies and abnormalities associated with the cardiopulmonary system. It includes the therapeutic use of medical gases and their administrative apparatus, environmental control systems, humidification, aerosols, ventilatory support, bronchopulmonary drainage and exercise, respiratory rehabilitation, assistance with cardiopulmonary resuscitation, and maintenance of natural, artificial, and mechanical airways.
Physiological processes and properties of the RESPIRATORY SYSTEM as a whole or of any of its parts.
The exchange of OXYGEN and CARBON DIOXIDE between alveolar air and pulmonary capillary blood that occurs across the BLOOD-AIR BARRIER.
Elements of limited time intervals, contributing to particular results or situations.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Failure to adequately provide oxygen to cells of the body and to remove excess carbon dioxide from them. (Stedman, 25th ed)
Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used.
An autosomal recessive genetic disease of the EXOCRINE GLANDS. It is caused by mutations in the gene encoding the CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR expressed in several organs including the LUNG, the PANCREAS, the BILIARY SYSTEM, and the SWEAT GLANDS. Cystic fibrosis is characterized by epithelial secretory dysfunction associated with ductal obstruction resulting in AIRWAY OBSTRUCTION; chronic RESPIRATORY INFECTIONS; PANCREATIC INSUFFICIENCY; maldigestion; salt depletion; and HEAT PROSTRATION.
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)
Helium. A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics. (Dorland, 27th ed)
A chronic multi-system disorder of CONNECTIVE TISSUE. It is characterized by SCLEROSIS in the SKIN, the LUNGS, the HEART, the GASTROINTESTINAL TRACT, the KIDNEYS, and the MUSCULOSKELETAL SYSTEM. Other important features include diseased small BLOOD VESSELS and AUTOANTIBODIES. The disorder is named for its most prominent feature (hard skin), and classified into subsets by the extent of skin thickening: LIMITED SCLERODERMA and DIFFUSE SCLERODERMA.
An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.
A sudden, audible expulsion of air from the lungs through a partially closed glottis, preceded by inhalation. It is a protective response that serves to clear the trachea, bronchi, and/or lungs of irritants and secretions, or to prevent aspiration of foreign materials into the lungs.
Therapeutic exercises aimed to deepen inspiration or expiration or even to alter the rate and rhythm of respiration.
Diseases caused by factors involved in one's employment.
A muscarinic antagonist structurally related to ATROPINE but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic.
Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time.
Severe or complete loss of motor function in all four limbs which may result from BRAIN DISEASES; SPINAL CORD DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; NEUROMUSCULAR DISEASES; or rarely MUSCULAR DISEASES. The locked-in syndrome is characterized by quadriplegia in combination with cranial muscle paralysis. Consciousness is spared and the only retained voluntary motor activity may be limited eye movements. This condition is usually caused by a lesion in the upper BRAIN STEM which injures the descending cortico-spinal and cortico-bulbar tracts.
Persistent abnormal dilatation of the bronchi.
An adrenergic beta-2 agonist that is used as a bronchodilator and tocolytic.
Surgical removal of ribs, allowing the chest wall to move inward and collapse a diseased lung. (Dorland, 28th ed)
Absence of air in the entire or part of a lung, such as an incompletely inflated neonate lung or a collapsed adult lung. Pulmonary atelectasis can be caused by airway obstruction, lung compression, fibrotic contraction, or other factors.
The capability of the LUNGS to distend under pressure as measured by pulmonary volume change per unit pressure change. While not a complete description of the pressure-volume properties of the lung, it is nevertheless useful in practice as a measure of the comparative stiffness of the lung. (From Best & Taylor's Physiological Basis of Medical Practice, 12th ed, p562)
Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.
A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.
Spirometric technique in which the volume of air breathed in the right and left lung is recorded separately.
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.
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.
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.
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
Recording of change in the size of a part as modified by the circulation in it.
Tendency of the smooth muscle of the tracheobronchial tree to contract more intensely in response to a given stimulus than it does in the response seen in normal individuals. This condition is present in virtually all symptomatic patients with asthma. The most prominent manifestation of this smooth muscle contraction is a decrease in airway caliber that can be readily measured in the pulmonary function laboratory.
The science, art, or technology dealing with processes involved in the separation of metals from their ores, the technique of making or compounding the alloys, the techniques of working or heat-treating metals, and the mining of metals. It includes industrial metallurgy as well as metallurgical techniques employed in the preparation and working of metals used in dentistry, with special reference to orthodontic and prosthodontic appliances. (From Jablonski, Dictionary of Dentistry, 1992, p494)
Noises, normal and abnormal, heard on auscultation over any part of the RESPIRATORY TRACT.
The period following a surgical operation.
Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.
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)
Narrowing of the caliber of the BRONCHI, physiologically or as a result of pharmacological intervention.
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.
A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.
Sarcoidosis affecting predominantly the lungs, the site most frequently involved and most commonly causing morbidity and mortality in sarcoidosis. Pulmonary sarcoidosis is characterized by sharply circumscribed granulomas in the alveolar, bronchial, and vascular walls, composed of tightly packed cells derived from the mononuclear phagocyte system. The clinical symptoms when present are dyspnea upon exertion, nonproductive cough, and wheezing. (Cecil Textbook of Medicine, 19th ed, p431)
Analogs and derivatives of atropine.
A pathological accumulation of air in tissues or organs.
Organizational development including enhancement of management structures, processes and procedures, within organizations and among different organizations and sectors to meet present and future needs.
A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1284; Corsini, Concise Encyclopedia of Psychology, 1987, p764-5)
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)
Any tests done on exhaled air.
The musculofibrous partition that separates the THORACIC CAVITY from the ABDOMINAL CAVITY. Contraction of the diaphragm increases the volume of the thoracic cavity aiding INHALATION.
The act of BREATHING out.
Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable.
The outer margins of the thorax containing SKIN, deep FASCIA; THORACIC VERTEBRAE; RIBS; STERNUM; and MUSCLES.
Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
A rapid onset form of SYSTEMIC SCLERODERMA with progressive widespread SKIN thickening over the arms, the legs and the trunk, resulting in stiffness and disability.
The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.
The distance from the sole to the crown of the head with body standing on a flat surface and fully extended.
Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.
Organic compounds that contain the -NCO radical.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
A form of pneumoconiosis caused by inhalation of asbestos fibers which elicit potent inflammatory responses in the parenchyma of the lung. The disease is characterized by interstitial fibrosis of the lung, varying from scattered sites to extensive scarring of the alveolar interstitium.
Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesized to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics.
Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.
Studies in which variables relating to an individual or group of individuals are assessed over a period of time.
Material coughed up from the lungs and expectorated via the mouth. It contains MUCUS, cellular debris, and microorganisms. It may also contain blood or pus.
Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.
The excision of lung tissue including partial or total lung lobectomy.
Drugs used for their effects on the respiratory system.
Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.
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)
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Measurement of oxygen and carbon dioxide in the blood.
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.
An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.
An X-linked recessive muscle disease caused by an inability to synthesize DYSTROPHIN, which is involved with maintaining the integrity of the sarcolemma. Muscle fibers undergo a process that features degeneration and regeneration. Clinical manifestations include proximal weakness in the first few years of life, pseudohypertrophy, cardiomyopathy (see MYOCARDIAL DISEASES), and an increased incidence of impaired mentation. Becker muscular dystrophy is a closely related condition featuring a later onset of disease (usually adolescence) and a slowly progressive course. (Adams et al., Principles of Neurology, 6th ed, p1415)
The time span between the beginning of physical activity by an individual and the termination because of exhaustion.
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.
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 vague complaint of debility, fatigue, or exhaustion attributable to weakness of various muscles. The weakness can be characterized as subacute or chronic, often progressive, and is a manifestation of many muscle and neuromuscular diseases. (From Wyngaarden et al., Cecil Textbook of Medicine, 19th ed, p2251)
The exposure to potentially harmful chemical, physical, or biological agents by inhaling them.
Injury following pressure changes; includes injury to the eustachian tube, ear drum, lung and stomach.
Physical activity which is usually regular and done with the intention of improving or maintaining PHYSICAL FITNESS or HEALTH. Contrast with PHYSICAL EXERTION which is concerned largely with the physiologic and metabolic response to energy expenditure.
The aggregate business enterprise of manufacturing textiles. (From Random House Unabridged Dictionary, 2d ed)
A tough, malleable, iron-based alloy containing up to, but no more than, two percent carbon and often other metals. It is used in medicine and dentistry in implants and instrumentation.
Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.
Surgical formation of an opening into the trachea through the neck, or the opening so created.
Drugs that bind to but do not activate CHOLINERGIC RECEPTORS, thereby blocking the actions of ACETYLCHOLINE or cholinergic agonists.
Condition in which no acceleration, whether due to gravity or any other force, can be detected by an observer within a system. It also means the absence of weight or the absence of the force of gravity acting on a body. Microgravity, gravitational force between 0 and 10 -6 g, is included here. (From NASA Thesaurus, 1988)
X-ray visualization of the chest and organs of the thoracic cavity. It is not restricted to visualization of the lungs.
Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)
A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.
The productive enterprises concerned with food processing.
A subcategory of CHRONIC OBSTRUCTIVE PULMONARY DISEASE. The disease is characterized by hypersecretion of mucus accompanied by a chronic (more than 3 months in 2 consecutive years) productive cough. Infectious agents are a major cause of chronic bronchitis.
Studies comparing two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. In the case of two treatments, A and B, half the subjects are randomly allocated to receive these in the order A, B and half to receive them in the order B, A. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. (Last, A Dictionary of Epidemiology, 2d ed)
The ratio of alveolar ventilation to simultaneous alveolar capillary blood flow in any part of the lung. (Stedman, 25th ed)
Anesthesia caused by the breathing of anesthetic gases or vapors or by insufflating anesthetic gases or vapors into the respiratory tract.
A group of compounds that contain the general formula R-OCH3.
An idiopathic systemic inflammatory granulomatous disorder comprised of epithelioid and multinucleated giant cells with little necrosis. It usually invades the lungs with fibrosis and may also involve lymph nodes, skin, liver, spleen, eyes, phalangeal bones, and parotid glands.
That part of the RESPIRATORY TRACT or the air within the respiratory tract that does not exchange OXYGEN and CARBON DIOXIDE with pulmonary capillary blood.
Any method of artificial breathing that employs mechanical or non-mechanical means to force the air into and out of the lungs. Artificial respiration or ventilation is used in individuals who have stopped breathing or have RESPIRATORY INSUFFICIENCY to increase their intake of oxygen (O2) and excretion of carbon dioxide (CO2).
A pyranoquinolone derivative that inhibits activation of inflammatory cells which are associated with ASTHMA, including eosinophils, neutrophils, macrophages, mast cells, monocytes, and platelets.
Surgical incision into the chest wall.
Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-antibody reaction and causes smooth muscle contraction and increased vascular permeability.
The total number of cases of a given disease in a specified population at a designated time. It is differentiated from INCIDENCE, which refers to the number of new cases in the population at a given time.
A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic.
The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals.
Agents that increase mucous excretion. Mucolytic agents, that is drugs that liquefy mucous secretions, are also included here.
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.
A subspecialty of internal medicine concerned with the study of the RESPIRATORY SYSTEM. It is especially concerned with diagnosis and treatment of diseases and defects of the lungs and bronchial tree.
The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE).
Supplies used in building.
Surgery performed on the lung.
Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, environmental exposure and its effects, disease diagnosis, metabolic processes, substance abuse, pregnancy, cell line development, epidemiologic studies, etc.
A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.
A condition of BRONCHOCONSTRICTION resulting from hypersensitive reaction to inhaled dust during the initial processing of cotton, flax, or hemp in the textile industry. Symptoms include wheezing and tightness in the chest.
Diseases in persons engaged in cultivating and tilling soil, growing plants, harvesting crops, raising livestock, or otherwise engaged in husbandry and farming. The diseases are not restricted to farmers in the sense of those who perform conventional farm chores: the heading applies also to those engaged in the individual activities named above, as in those only gathering harvest or in those only dusting crops.
Endoscopic examination, therapy or surgery of the bronchi.
Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances.
A group of compounds that are derivatives of beta-methylacetylcholine (methacholine).
Deformities of the SPINE characterized by an exaggerated convexity of the vertebral column. The forward bending of the thoracic region usually is more than 40 degrees. This deformity sometimes is called round back or hunchback.
A generic concept reflecting concern with the modification and enhancement of life attributes, e.g., physical, political, moral and social environment; the overall condition of a human life.
The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.
Large, long-tailed reptiles, including caimans, of the order Loricata.
A reduction in the amount of air entering the pulmonary alveoli.
Contamination of the air by tobacco smoke.
The position or attitude of the body.
Orthopedic appliances used to support, align, or hold parts of the body in correct position. (Dorland, 28th ed)
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS.
Washing out of the lungs with saline or mucolytic agents for diagnostic or therapeutic purposes. It is very useful in the diagnosis of diffuse pulmonary infiltrates in immunosuppressed patients.
An activity in which the body advances at a slow to moderate pace by moving the feet in a coordinated fashion. This includes recreational walking, walking for fitness, and competitive race-walking.
Pyridine derivatives with one or more keto groups on the ring.
The amount of force generated by MUSCLE CONTRACTION. Muscle strength can be measured during isometric, isotonic, or isokinetic contraction, either manually or using a device such as a MUSCLE STRENGTH DYNAMOMETER.
Epicutaneous or intradermal application of a sensitizer for demonstration of either delayed or immediate hypersensitivity. Used in diagnosis of hypersensitivity or as a test for cellular immunity.
Sulfur hexafluoride. An inert gas used mainly as a test gas in respiratory physiology. Other uses include its injection in vitreoretinal surgery to restore the vitreous chamber and as a tracer in monitoring the dispersion and deposition of air pollutants.
Penetrating and non-penetrating injuries to the spinal cord resulting from traumatic external forces (e.g., WOUNDS, GUNSHOT; WHIPLASH INJURIES; etc.).
A degenerative disorder affecting upper MOTOR NEURONS in the brain and lower motor neurons in the brain stem and SPINAL CORD. Disease onset is usually after the age of 50 and the process is usually fatal within 3 to 6 years. Clinical manifestations include progressive weakness, atrophy, FASCICULATION, hyperreflexia, DYSARTHRIA, dysphagia, and eventual paralysis of respiratory function. Pathologic features include the replacement of motor neurons with fibrous ASTROCYTES and atrophy of anterior SPINAL NERVE ROOTS and corticospinal tracts. (From Adams et al., Principles of Neurology, 6th ed, pp1089-94)
A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.
The measurement of frequency or oscillation changes.
The determination of oxygen-hemoglobin saturation of blood either by withdrawing a sample and passing it through a classical photoelectric oximeter or by electrodes attached to some translucent part of the body like finger, earlobe, or skin fold. It includes non-invasive oxygen monitoring by pulse oximetry.
The technique that deals with the measurement of the size, weight, and proportions of the human or other primate body.
Drugs that are used to treat asthma.

Arterial blood gas tensions during upper gastrointestinal endoscopy. (1/2375)

Arterial blood gas tensions were measured before and during upper gastrointestinal endoscopy, with (group I) and without (group 2) sedation with intravenous diazepam. There was a highly significant fall in the PaO2, which occurred in both groups and was therefore not attributable to diazepam. Measurement of FEV, and FVC before endoscopy had no predictive value for those patients whose PaO2 fell the most.  (+info)

Comparative total mortality in 25 years in Italian and Greek middle aged rural men. (2/2375)

STUDY OBJECTIVE: Mortality over 25 years has been low in the Italian and very low in the Greek cohorts of the Seven Countries Study; factors responsible for this particularity were studied in detail. PARTICIPANTS AND SETTINGS: 1712 Italian and 1215 Greek men, aged 40-59 years, cohorts of the Seven Countries Study, representing over 95% of the populations in designated rural areas. DESIGN: Entry (1960-61) data included age, systolic blood pressure (SBP), smoking habits, total serum cholesterol, body mass index (BMI), arm circumference, vital capacity (VC), and forced expiratory volume in 3/4 seconds (FEV); the same data were obtained 10 years later. Multivariate Cox analysis was performed with all causes death in 25 years as end point. MAIN RESULTS: Italian men had higher entry levels of SBP, arm circumference, BMI, and VC; Greek men had higher cholesterol levels, smoking habits, and FEV. Mortality of Italian men was higher throughout; at 25 years cumulative mortality was 48.3% and 35.3% respectively. Coronary heart disease and stroke mortality increased fivefold in Italy and 10-fold in Greece between years 10 and 25. The only risk factor with a significantly higher contribution to mortality in Italian men was cholesterol. However, differences in entry SBP (higher in Italy) and FEV (higher in Greece) accounted for, according to the Lee method, 75% of the differential mortality between the two populations. At 10 years increases in SBP, cholesterol, BMI, and decreases in smoking habits, VC, FEV, and arm circumference had occurred (deltas). SBP increased more and FEV and VC decreased more in Italy than in Greece. Deltas, fed stepwise in the original model for the prediction of 10 to 25 years mortality, were significant for SBP, smoking, arm circumference, and VC in Greece, and for SBP and VC in Italy. CONCLUSION: Higher mortality in Italian men is related to stronger positive effects of entry SBP and weaker negative (protective) effects of FEV; in addition 10 year increases in SBP are higher and 10 year decreases in FEV are larger in Italy. Unaccounted factors, however, related to, for example, differences in the diet, may also have contributed to the differential mortality of these two Mediterranean populations.  (+info)

Double-blind intervention trial on modulation of ozone effects on pulmonary function by antioxidant supplements. (3/2375)

The aim of this study was to investigate whether the acute effects of ozone on lung function could be modulated by antioxidant vitamin supplementation in a placebo-controlled study. Lung function was measured in Dutch bicyclists (n = 38) before and after each training session on a number of occasions (n = 380) during the summer of 1996. The vitamin group (n = 20) received 100 mg of vitamin E and 500 mg of vitamin C daily for 15 weeks. The average ozone concentration during exercise was 77 microg/m3 (range, 14-186 microg/m3). After exclusion of subjects with insufficient compliance from the analysis, a difference in ozone exposure of 100 microg/m3 decreased forced expiratory volume in 1 second (FEV1) 95 ml (95% confidence interval (CI) -265 to -53) in the placebo group and 1 ml (95% CI -94 to 132) in the vitamin group; for forced vital capacity, the change was -125 ml (95% CI -384 to -36) in the placebo group and -42 ml (95% CI -130 to 35) in the vitamin group. The differences in ozone effect on lung function between the groups were statistically significant. The results suggest that supplementation with the antioxidant vitamins C and E confers partial protection against the acute effects of ozone on FEV1 and forced vital capacity in cyclists.  (+info)

Exhaled and nasal NO levels in allergic rhinitis: relation to sensitization, pollen season and bronchial hyperresponsiveness. (4/2375)

Exhaled nitric oxide is a potential marker of lower airway inflammation. Allergic rhinitis is associated with asthma and bronchial hyperresponsiveness. To determine whether or not nasal and exhaled NO concentrations are increased in allergic rhinitis and to assess the relation between hyperresponsiveness and exhaled NO, 46 rhinitic and 12 control subjects, all nonasthmatic nonsmokers without upper respiratory tract infection, were randomly selected from a large-scale epidemiological survey in Central Norway. All were investigated with flow-volume spirometry, methacholine provocation test, allergy testing and measurement of nasal and exhaled NO concentration in the nonpollen season. Eighteen rhinitic subjects completed an identical follow-up investigation during the following pollen season. Exhaled NO was significantly elevated in allergic rhinitis in the nonpollen season, especially in perennially sensitized subjects, as compared with controls (p=0.01), and increased further in the pollen season (p=0.04), mainly due to a two-fold increase in those with seasonal sensitization. Nasal NO was not significantly different from controls in the nonpollen season and did not increase significantly in the pollen season. Exhaled NO was increased in hyperresponsive subjects, and decreased significantly after methacholine-induced bronchoconstriction, suggesting that NO production occurs in the peripheral airways. In allergic rhinitis, an increase in exhaled nitric oxide on allergen exposure, particularly in hyperresponsive subjects, may be suggestive of airway inflammation and an increased risk for developing asthma.  (+info)

Orally exhaled nitric oxide levels are related to the degree of blood eosinophilia in atopic children with mild-intermittent asthma. (5/2375)

Increased levels of nitric oxide have been found in expired air of patients with asthma, and these are thought to be related to the airway inflammatory events that characterize this disorder. Since, in adults, bronchial inflammatory changes are present even in mild disease, the present study was designed to evaluate whether a significant proportion of children with mild-intermittent asthma could have increased exhaled air NO concentrations. Twenty-two atopic children (aged 11.1+/-0.8 yrs) with mild-intermittent asthma, treated only with inhaled beta2-adrenoreceptor agonists on demand and 22 age-matched controls were studied. NO concentrations in orally exhaled air, measured by chemiluminescence, were significantly higher in asthmatics, as compared to controls (19.4+/-3.3 parts per billion (ppb) and 4.0+/-0.5 ppb, respectively; p<0.01). Interestingly, 14 out of 22 asthmatic children had NO levels >8.8 ppb (i.e. >2 standard deviations of the mean in controls). In asthmatic patients, but not in control subjects, statistically significant correlations were found between exhaled NO levels and absolute number or percentage of blood eosinophils (r=0.63 and 0.56, respectively; p<0.01, each comparison). In contrast, exhaled NO levels were not correlated with forced expiratory volume in one second (FEV1) or forced expiratory flows at 25-75% of vital capacity (FEF25-75%) or forced vital capacity (FVC), either in control subjects, or in asthmatic patients (p>0.1, each correlation). These results suggest that a significant proportion of children with mild-intermittent asthma may have airway inflammation, as shown by the presence of elevated levels of nitric oxide in the exhaled air. The clinical relevance of this observation remains to be established.  (+info)

Risk factors for lower airway bacterial colonization in chronic bronchitis. (6/2375)

The aim of this study was to determine the prevalence and risk factors for lower airway bacterial colonization (LABC) in stable chronic bronchitis (CB). Forty-one outpatients with CB were enrolled in the study (age 63.8+/-9.1 yrs (mean+/-SD); forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) 62.8+/-11.2; current/former smokers 24/17). All patients had normal chest radiographs and an indication for performing fibreoptic bronchoscopy (pulmonary nodule, remote haemoptysis). The protected specimen brush (PSB) was used for bacterial sampling, and concentrations > or = 1,000 colony-forming units (cfu) x mL(-1) were considered positive for LABC. The repeatability of the procedure in CB was assessed in a random subsample of 18 subjects. A 72.2% quantitative agreement was found in the repeatability assessment of the PSB technique. Positive PSB cultures, obtained in 9 out of 41 (22%) patients, mainly yielded Haemophilus influenzae. The logistic regression model, used to determine which variables were related to colonization, showed that LABC was associated with current smoking (odds ratio (OR) 9.83, confidence interval (CI) 1.16-83.20) and low FVC (OR 0.73, CI 0.65-0.81). Age and FEV1 were not related to LABC. It was concluded that the prevalence of LABC in stable CB is high (22%), and current smoking is an important risk factor.  (+info)

Predisposing factors to bacterial colonization in chronic obstructive pulmonary disease. (7/2375)

The aim of this prospective observational study was to determine those factors influencing bacterial colonization in patients with stable chronic obstructive pulmonary disease (COPD). Eighty-eight outpatients with stable COPD and 20 patients with normal spirometry and chest radiography (controls) had a fibreoptic bronchoscopy performed with topical aerosol anaesthesia. Bacterial colonization was determined using the protected specimen brush (PSB) with a cut-off > or = 10(3) colony-forming units (CFU x mL(-1)). The influence of age, degree of airflow obstruction, smoking habit, pack-yrs of smoking, and chest radiographic findings on bacterial colonization were assessed by univariate and multivariate analysis. Significant bacterial growth was found in 40% of patients and in none of the controls. Haemophilus influenzae, Streptococcus viridans, S. pneumoniae and Moraxella catarrhalis were the most frequent pathogens. After adjustment for other variables, severe airflow limitation (odds ratio (OR) 5.11, 95% confidence interval (CI) 1.45-17.9) and current smoking (OR 3.17, 95% CI 2.5-8) remained associated with positive bacterial cultures. When only potentially pathogenic micro-organisms were considered, significant bacterial growth was found in 30.7% of patients, with severe airflow obstruction (OR 9.28, 95% CI 2.19-39.3) being the only variable independently associated with positive bacterial cultures. Our results show that stable chronic obstructive pulmonary disease patients have a high prevalence of bacterial colonization of distal airways which is mainly related to the degree of airflow obstruction and cigarette smoking.  (+info)

A pilot study of low-dose erythromycin in bronchiectasis. (8/2375)

Patients with bronchiectasis suffer from sputum production, recurrent exacerbations, and progressive airway destruction. Erythromycin is effective in diffuse panbronchiolitis, another suppurative airway disorder, although its efficacy is unknown in idiopathic bronchiectasis. A double-blind placebo-controlled study was therefore conducted to evaluate the effects of 8-week administration of low dose erythromycin (500 mg b.i.d.) in steady-state idiopathic bronchiectasis. Patients in the erythromycin group (n=11, 8 female, mean age 50+/-15 yrs), but not the placebo group (n=10, 8 female, mean age 59+/-16 yrs) had significantly improved forced expiratory volume in one second, forced vital capacity and 24-h sputum volume after 8 weeks (p<0.05). There was no parallel improvement in sputum pathogens, leukocytes, interleukin (IL)-1alpha and IL-8, tumour necrosis factor-alpha, or leukotriene B4. The results of this pilot study show that low-dose erythromycin improves lung function and sputum volume in bronchiectasis. Further studies are indicated to evaluate the efficacy of long-term erythromycin therapy in bronchiectasis.  (+info)

Definition of forced vital capacity in the Financial Dictionary - by Free online English dictionary and encyclopedia. What is forced vital capacity? Meaning of forced vital capacity as a finance term. What does forced vital capacity mean in finance?
Exploration A spirometer is an apparatus often used in the medical field to find the cause of shortness of breath. A spirometer can rule out lung diseases like asthma, bronchitis, and emphysema. A spirometer can measure forced vital capacity. Forced vital capacity is the amount of air exhaled during a forced breath. Explore what factors affect forced vital capacity. Objective
Patients with severe chronic obstructive pulmonary disease (COPD) often exhale along the same flow-volume curve during quiet breathing as during a forced expiratory vital capacity manoeuvre, and this has been taken as indicating flow limitation at rest. To obtain such curves, a body plethysmograph and the patients co-operation are required. We propose a simple technique which does not entail these requirements. It consists in applying negative pressure at the mouth during a tidal expiration (NEP). Patients in whom NEP elicits an increase in flow throughout the expiration are not flow-limited. In contrast, patients in whom application of NEP does not elicit an increase in flow during most or part of the tidal expiration are considered as flow-limited. Using this technique, 26 stable COPD patients were studied sitting and supine. Eleven patients were flow-limited both seated and supine, eight were flow-limited only when supine, and seven were not flow-limited either seated or supine. Only 5 of 19 ...
Measuring forced vital capacity (FVC) is part of a spirometry or pulmonary function test that is conducted to assess lung health, airflow, and help in disease diagnosis and effectiveness of medical treatment. Forced vital capacity is the amount of air that can be forcibly exhaled from your lungs after inhaling as deepl
Looking for vital capacities? Find out information about vital capacities. The volume of air that can be forcibly expelled from the lungs after the deepest inspiration Explanation of vital capacities
View Gankhuyag,Sengum_vital capacity_Period 3.pdf from PHYSICS 303 at Warren High School. Vital Capacity 3/19/18 Volume Measurement (L) Individual (L) Sengum Gankhuyag Class average male Class
To quantify the degree of association, if any, between lung size and airway size in humans, the ratio of a measurement known to be sensitive to airway size (maximal expiratory flow divided by static recoil pressure at 50% of vital capacity) to one sensitive to lung size (vital capacity) was examined …
A reduced FEV1 is as a marker of airflow obstruction where TLC is normal or increased, whilst both TLC and FEV1 are reduced in a restrictive ventilatory defect. Aim: To determine the usefulness of the FEV1/TLC ratio in determining the presence of an obstructive or restrictive ventilatory defect. Methods: Lung function measurements of FEV1, VC and TLC were reviewed and divided into four principle groups - 1) normal (both FEV1 and TLC , -1.64 SR), 2) airways obstruction (FEV1%VC , -1.64SR, TLC normal or , +1.65SR), 3) restrictive defect (TLC , -1.65 SR) and 4) a mixed obstructive-restrictive defect. Results: The group (n = 806; age 20 - 97 yrs) and sub-group analysis is shown in the table. ...
In a clinical study, pulmonary function was studied in 1430 Boston fire fighters during the period 1970 to 1972. Questionnaire information on exposures, current respiratory symptoms and smoking habits was also collected. Forced vital capacity and forced expiratory volume in one second were measured on two occasions. The rate of loss in pulmonary function observed for the entire population was more
Onary function tests FEV1, predicted FEV1, L FVC, predicted FVC, L FEV1/FVC ratio RV, predicted TLC, predicted TGV, predicted Raw, predicted Sgaw,
In trying to free the animals and save them from falling into the void, Rosy died in the first week of her residency in Cattle Depot. ...
adjective - (វេជ្ជសាស្ត្រ) ទំហំខ្យល់ដែលអាចបញ្ចេញពីសួតបានក្រោយការដកដង្ហើមចូលពេញសួត
1. decrease in forced vital capacity (fvc) by 12% from her previous study-ostensibly, similar patients may behave quite differently over time, and our ability to distinguish this on initial assessment is relatively poor. several authors have investigated the predictive power of trends in clinical progression to predict mortality. a number of studies have now pointed to a change in fvc, often set at 10%, as being clinically predictive of further disease progression. other measures of disease - ProProfs Discuss
A retrospective review of 100 consecutive patients born between 1970 and 1990 found that NIV improved survival. Spinal surgery did not increase forced vital capacity, but in combination with nocturnal ventilation, further improved median survival.5 ...
Looking for online definition of obstructive ventilatory defect in the Medical Dictionary? obstructive ventilatory defect explanation free. What is obstructive ventilatory defect? Meaning of obstructive ventilatory defect medical term. What does obstructive ventilatory defect mean?
TY - JOUR. T1 - Ratio between forced expiratory flow between 25% and 75% of vital capacity and FVC is a determinant of airway reactivity and sensitivity to methacholine. AU - Parker, Annie Lin. AU - Abu-Hijleh, Muhanned. AU - McCool, F. Dennis. PY - 2003/7/1. Y1 - 2003/7/1. N2 - Study objective: The ratio between forced expiratory flow between 25% and 75% of vital capacity (FEF25-75) and FVC is thought to reflect dysanapsis between airway size and lung size. A low FEF25-75/FVC ratio is associated with airway responsiveness to methacholine in middle-aged and older men. The current study was designed to assess this relationship in both male and female subjects over a broader range of ages. Study design: Data analysis of consecutive subjects who had a ≥ 20% reduction in FEV1 after ≤ 189 cumulative units of methacholine over a 7-year period. Setting: Pulmonary function laboratory in a university-affiliated hospital. Patients: A total of 764 consecutive subjects aged 4 to 91 years (mean ± SD ...
Forced expiratory volume (FEV) measures how much air a person can exhale during a forced breath. The amount of air exhaled may be measured during the first (FEV1), second (FEV2), and/or third seconds (FEV3) of the forced breath. Forced vital capacity (FVC) is the total amount of air exhaled during the FEV test...
NorthShore encourages patients to utilize our medical library. Read our Forced Expiratory Volume and Forced Vital Capacity encyclopedia resources online.
Vital Capacity. *This is not a science lesson*. Vital capacity refers to the amount of oxygen we can bring into our lungs in one breath and release. The more the better. Oxygen brings nutrients to every part of our being. Carbon dioxide is released when we exhale, which is toxic to us. The deeper the exhalation the more cleansed we become. Oxygen gives us life and vitality. Releasing carbon dioxide cleanses us from what is harmful.. I thought that was interesting as a scientific reality for many years. Lately I have been living in the metaphor of this. Vital capacity is our potential for true vitality. Its about living fully consciously reaching for and receiving what we need and letting go of what we dont need anymore. We cleanse our selves with every single breath.. Our breath cycle, the constant and repetitive action of breathing in and out is a natural process that heals and strengthens us in every moment. Filling up, gathering from and opening to what is all around us provides ...
TY - JOUR. T1 - Reduced Forced Vital Capacity Among Human Immunodeficiency Virus-Infected Middle-Aged Individuals. AU - AGEhIV Study Group AU - Verboeket, Sebastiaan O.. AU - Wit, Ferdinand W.. AU - Kirk, Gregory D. AU - Drummond, M. Bradley. AU - van Steenwijk, Reindert P.. AU - van Zoest, Rosan A.. AU - Nellen, Jeannine F.. AU - Schim van der Loeff, Maarten F.. AU - Reiss, Peter. PY - 2019/4/8. Y1 - 2019/4/8. N2 - BACKGROUND: Pulmonary function impairments are more common among people living with HIV (PLWH), as are contributing risk behaviors. To understand the effects of human immunodeficiency virus (HIV) infection independent of risk behaviors, pulmonary function was evaluated in lifestyle-comparable HIV-infected and -uninfected AGEhIV cohort participants. METHODS: Prevalence of obstructive lung disease in 544 HIV-infected and 529 HIV-uninfected participants was determined using spirometry. Logistic regression was used to assess HIV as a determinant of obstructive lung disease. Additional ...
The measurements were performed in two piglets (g08 and g10) during baseline conditions in healthy lung (g08-c003.get, g10-c003.get), after induction of acute lung injury by repeated bronchoalveolar lavage (g08-c017.get, g10-c019.get) and after administration of surfactant (g08-c035.get, g10-c029.get) during pressure-controlled ventilation. The EIT raw data were acquired during an incremental and decremental PEEP trial (stepwise increase and decrease of positive end-expiratory pressure from 0 cm H2O to 25 cm H2O and back) at a rate of 13 frames/s. Each measurement lasted 180 s. The excitation current was 70 kHz. Data were published in Dargaville, P.A., Rimensberger, P.M., Frerichs, I. (2010) Regional tidal ventilation and compliance during a stepwise vital capacity manoeuvre. Intensive Care Med. 36:1953-1961 ...
BACKGROUND: In several longitudinal studies changes in body mass and in forced expiratory volume in one second (FEV1) have been found to be negatively correlated. This paper tests the hypothesis that failure to allow for the association can lead to error in the interpretation of longitudinal measurements of ventilatory capacity. METHODS: Male shipyard workers (n = 1005) were assessed on two occasions with an average interval between measurements of 6.9 years. A respiratory symptoms questionnaire, detailed anthropometric measurements, and dynamic spirometric tests were undertaken. Multiple regression analysis was used to identify variables which contributed to the changes in lung function. RESULTS: After allowing for age and growth in stature, a change in body mass of 1 kg was, on average, associated with a mean (SE) converse change in FEV1 of 17.6 (2.0) ml, and in forced vital capacity (FVC) of 21.1 (2.5) ml. Neglect of changes in body mass (which in this context reflected changes in body fat) ...
Methods: Thirty consecutive morbidly obese patients undergoing gastric banding were investigated. All subjects were studied the day before surgery (T0) and on postoperative day one (T1). Forced Vital Capacity (FVC) was measured, together with heart rate, mean arterial pressure and respiratory rate. At T0 measurements were taken in a random fashion with subjects in upright and in supine position. Subjects were then investigated after surgery in the supine position (T1). Postoperative pain was assessed at T1 using visual analogue scale. Intraoperative variables were also collected ...
This analysis of a large multicentre population indicates that adult lung function and susceptibility to COPD is partly determined early in life, and that the impact of childhood disadvantage appears to persist. Maternal asthma, paternal asthma, childhood asthma, severe respiratory infections before the age of 5 years and maternal smoking were associated with a lower adult FEV1 level, and having any one or more of these factors constituted a considerable disadvantage with regard to adult lung function and COPD. Subjects with an increasing number of childhood disadvantage factors had an increasingly lower level of FEV1 in adult life, a slightly larger decline in FEV1 and the prevalence of COPD was substantially increased. The impairment of FEV1 persisted up to the maximum age in our study population (56 years) and no catch-up was detected. Childhood disadvantage was as common in the population as current smoking, and showed an equally large impact on lung function and COPD and a slightly smaller ...
Computerised Spirometry measures the forced vital capacity, forced expiratory volume in one second, and many more lung parameters including your lung age. It helps us in differentiating between obstructive and restrictive pattern of your disease. Different types of obstructive airway diseases like asthma copd can be easily picked by this investigation. A very useful tool used in our clinic for diagnosing as well as monitoring the progress and prognosis.. What is spirometry?. Spirometry is a test used for lung conditions, such as COPD* or asthma. It is a simple breathing test that measures the amount of air a person can blow out of the lungs (volume). It also measures how fast he or she can blow it out (flow). It is one of the best and most common lung function tests. Spirometry is often done in your healthcare providers office or in a clinic. Spirometry can detect COPD before symptoms become severe. Based on this test, your provider can tell if you have COPD and, if so, how severe it is.. What ...
Were very excited to welcome you to Vital Capacities! Over the past 3 months weve been working with the four resident artists - Seecum Cheung, Joey Holder, Daniel Locke and Romily Alice Walden, plus access specialist, Sarah Pickthall and web designer, Oli Pyle to create this new, accessible space for artists and audiences. Vital Capacities was partly inspired by the Covid-19 pandemic and travel restrictions, but we mainly took inspiration from seeing the limitations travel (and away from home accommodation) put on traditional residencies. These limits often affect disabled people, people with families, those with less resources, and people who dont want to or cant travel / stay away from home for other reasons. So, we thought wed try and create a virtual space that could offer similar value without the restrictions. We wanted to develop a site that could provide some of the opportunities a residency can give: space and time to think; exploring and developing ideas; making new connections; ...
This vital capacity calculator determines the vital capacity in litres based on tidal volume, inspiratory and expiratory reserve volumes.
Data from the Tucson epidemiological study of airways obstructive disease on smoking of non-tobacco cigarettes such as marijuana were analysed to determine the effect of such smoking on respiratory symptoms and pulmonary function. Among adults aged under 40, 14% had smoked non-tobacco cigarettes at some time and 9% were current users. The prevalence of respiratory symptoms was increased in smokers of non-tobacco cigarettes. After tobacco smoking had been controlled for men who smoked non-tobacco cigarettes showed significant decreases in expiratory flow rates at low lung volumes and in the ratio of the forced expiratory volume in one second to the vital capacity. This effect on pulmonary function in male non-tobacco cigarette smokers was greater than the effect of tobacco cigarette smoking. These data suggest that non-tobacco cigarette smoking may be an important risk factor in young adults with respiratory symptoms or evidence of airways obstruction. ...
Get Pulmonary Function Test cost from certified hospitals in Gurgaon. Get assistance from medical experts to select best hospital for Pulmonary Function Test in Gurgaon
The GLI-2012 equations are the most robust spirometry reference equations to date. The main advantage of these equations is that there is a smooth transition across the ages (i.e. no changes from paediatric to adult equations) and a well-defined lower limit of normal (LLN) for all ages. The group demonstrated that the scatter around predicted values is not constant, but varies with age, such that fixed thresholds for abnormality (e.g. 80% predicted for FEV1 or 0.70 for the FEV1/forced vital capacity (FVC) ratio) across all ages are inappropriate and can lead to significant misclassification. Using z-scores, which indicate how many standard deviations a measurement is from its predicted value, overcomes the bias due to age, height, sex and ethnicity, and is useful for defining the LLN. The American Thoracic Society (ATS) and the ERS both recommend the use of the fifth centile (i.e. −1.64 z-scores) to define the LLN [6].. The GLI group also found that, by combining such a large number of ...
Another exceedingly useful clinical pulmonary test, and one that is also simple, is to make a record on a spirometer of the forced expiratory vital ca
On pulmonary function. The possible role of curcumins in protecting the pulmonary function of smokers should be further investigated in clinical
Pulmonary function tests are a group of non-invasive tests that gauge how well your lungs are working, often studying the strength of your inhale and exhale. If you have been experiencing breathing trouble, you can find a healthcare provider who performs pulmonary function tests in Montclair, NJ.
The clinical significance of an isolated reduction in forced expiratory volume in 1 second (FEV(1); i.e., low FEV(1), but normal forced vital capacity [FVC] and FEV(1)/FVC) has not been established. To examine the clinical features of subjects
The role that vitamin D plays in pulmonary function remains uncertain. Epidemiological studies reported mixed findings for serum 25-hydroxyvitamin D (25(OH)D)-pulmonary function association. We conducted the largest cross-sectional meta-analysis of the 25(OH)D-pulmonary function association to date, based on nine European ancestry (EA) cohorts (n 22 838) and five African ancestry (AA) cohorts (n 4290) in the Cohorts for Heart and Aging Research in Genomic Epidemiology Consortium. Data were analysed using linear models by cohort and ancestry. Effect modification by smoking status (current/former/never) was tested. Results were combined using fixed-effects meta-analysis. Mean serum 25(OH)D was 68 (sd 29) nmol/l for EA and 49 (sd 21) nmol/l for AA. For each 1 nmol/l higher 25(OH)D, forced expiratory volume in the 1st second (FEV1) was higher by 1·1 ml in EA (95 % CI 0·9, 1·3; P,0·0001) and 1·8 ml (95 % CI 1·1, 2·5; P,0·0001) in AA (Prace difference=0·06), and forced vital capacity (FVC) ...
Sarepta Therapeutics, Inc. (NASDAQ: SRPT), a developer of innovative RNA-based therapeutics, today announced new pulmonary function data through Week
Worldwide leaders in cardiopulmonary and metabolic diagnostics, including spirometry, pulmonary function, indirect calorimetry, exercise testing, body composition.
Using a spirometer. A procedure to obtain measurements of lung capacities such as vital capacity and forced expiratory volumes - STUDY SHEET ...
Information for medical professionals about the pulmonary function test (PFTs lung test) services available from Express Diagnostics.
Care guide for Pulmonary Function Tests (Discharge Care). Includes: possible causes, signs and symptoms, standard treatment options and means of care and support.
There are different types of tests that can be performed with a spirometer. The most important ones are the Forced Vital Capacity and the reversibility test.
The fundamental limit of the lungs is a basic segments of good wellbeing. Indispensable limit is a significant for those with asthma. Heart conditions and lungs infirmities the individuals who smoke and the individuals who have no known lung issues
In Eckers Zero-Sometimes the rules of rock, paper, scissors (which dates to the Chinese Hang Dynasty) are warped. Using simple tools of distraction through nail accoutrement, the same set of hands continuously show up to battle against themselves in varying masquerade. The opponent becomes the antagonist with seemingly no end in sight. The competitions bearing and point come into question, leaving only an arbitrary game to be lost in and laugh at. Unwieldy and ornamental patterns are created, reminiscent of sequencing string games, in Cradle. Contemplative movements create a kaleidoscope of uncomfortable configurations. Musing forms are created as echos to time spent as reflections reliant on mirrors for answers. ...
May 1, 2014, by Todd Neva. There was something noticeably absent at the ALS clinic: Kristin crying.. The main reason for that was the news of my breathing. I scored 92% on forced vital capacity. FVC is a measurement of how much air I can expel from my lungs. As my diaphragm weakens, I lose the ability to expel carbon dioxide. Breathing is critical for obvious reasons, but this measurement is important because it determines when intervention is required. Surgery for a feeding tube, for example, requires that my breathing is at least 50%.. At my first ALS clinic, my breathing was 104%. Six months ago it was 90%. Kristin was bracing for 87%, but when I blew a 92%, Kristin smiled.. Before the clinic, last Tuesday, April 22, we had an opportunity to speak at an ALS support group. There were three other couples in attendance. It was difficult to know what to say to them. Weve spoken to other groups, but the folks at the support group are in the ALS trenches with us, and in some ways have suffered ...
Hey guys, So after a few very anxious weeks I (27M) finally saw my pulmo today. He was very happy that I quit smoking and I told him that while I …
Complete Desktop Spirometry Solutions. PC based spirometers for lung screening, clinical trials and research needs.. The MICRO 5000 spirometer is the building block of your pulmonary function lab.. A modular desktop spirometry system with reliable and accurate testing in a single, compact device.. ...
The Ultima™ Series cardiorespiratory diagnostic systems offer maximum flexibility to configure both pulmonary function testing (PFT) and gas-exchange systems. We offer the latest technology and sensors for unparalleled performance and reliability. The fully adjustable desktop allows for expansive personal workspace whether the technician is sitting or standing. Our powerful BreezeSuite™ cardiorespiratory diagnostic software provides simple, one-button testing. Our proprietary preVent® flow sensor maximizes lab efficiency and infection control while meeting or exceeding ATS/ERS standards and specifications.. ​, download (pdf): Ultima PFX™ pulmonary function/stress testing system ...
Paediatric pulmonary function testing , Paediatric pulmonary function testing , کتابخانه دیجیتال جندی شاپور اهواز
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Our expert staff can safely perform pulmonary function tests and accurately interpret test results to help determine if you have asthma.
PFT. This test can be highly variable. The quality of the test can depend on several things. The patient performing the test has to really give it a good effort. Many times this is also dependent on the person administering the test, who must be a good instructor. Also the equipment must be calibrated, and functioning well, no air leaks and also the type of equipment may allow for some variability. Read more... ...
Hello. This is my first post. My wife was diagnosed with ALS last April. Her neurologist said most patients live 3-5 years. She had her three month...
1. Sit up straight at the end of the seat and lean you back against the chair backerest. The best and most natural position for the body is to be standing. When you are sitting down at work, the pressure on inter-vertebral discs is increasing. With a straight position of your abck, pressure will be dispatched between your discs, your ribcage will straighten, and thus increase your vital capacity and make you breathe easier as well as improve your heart functioning ...
Vital Capacities and the Prospects for Thriving Together If our response to the Covid pandemic had been creation of a system designed to address the needs of all people, the spread of the disease would have slowed, fewer would have died, and economic pain would have been reduced. Bobby Milstein, one of the editors of the Thriving Together Springboard (http://Thriving.US), has been studying the difference between organizing ourselves against adversity versus organizing ourselves FOR well-being. He will share a [...] ...
Vital Capacities and the Prospects for Thriving Together If our response to the Covid pandemic had been creation of a system designed to address the needs of all people, the spread of the disease would have slowed, fewer would have died, and economic pain would have been reduced. Bobby Milstein, one of the editors of the Thriving Together Springboard (http://Thriving.US), has been studying the difference between organizing ourselves against adversity versus organizing ourselves FOR well-being. He will share a [...] ...
Pulmonary Function Testing Systems Market: Global Size, Trends, Competitive, Historical & Forecast Analysis, 2019-2025- Increasing prevalence of
Problem:SLP (Session Long Project) The dataset FEV.sav contains 6 variables: ID, age in years, FEV=forced expiratory volume in liters, height in inches, sex 0=female, 1=male, and smoke=current smoking s ...there is moreshow.
Protec Medical Supplies - Have a selection of Microlab, MicroLoop and Micro spirometers from Micro Medical and CareFusion and Cardinal Health
结果:369位病人入选,共220位随机化并接受了benralizumab或安慰剂治疗。相对于安慰剂组,治疗组患者口服糖皮质激素量减少了25%,两种benralizumab给药方案所在的试验组,其中位口服糖皮质激素量相对于基线减少了75%(两组间比P,0.001)。benralizumab组口服糖皮质激素减少的患者比例约超过了安慰剂组的4倍。在次要终点中,每4周benralizumab注射组中患者的每年加重率要比安慰剂组低55%(边缘率,0.83 vs. 1.83, P=0.003);每8周benralizumab注射组中患者的每年加重率要比安慰剂组低70%(边缘率, 0.54 vs. 1.83, P,0.001)。在28周时,相对于安慰剂组,两种benralizumab给药组均对患者的第1秒用力呼气容积(FEV1)无显著影响。Benralizumab在多项哮喘症状指标中的效应不一,一些显示出显著的变化,而另一些则没有显著的变化。不良反应的发生率在benralizumab给药组和安慰剂组中大致相当 ...
my pulmanary doc is over does things..ive noticed this..i went there 1 time my blod p was high i have this..was 150/110....my whole 10 min was on this...its been...
n 1. емкость, электрическая емкость 2. мощность 3. производительность 4. установленная мощность
Hutchinson is regarded as the inventor of vital capacity because he found that with every inch of height vital capacity ... including residual volume and vital capacity. 1846 The water spirometer measuring vital capacity was developed by a surgeon ... describing the direct relationship between vital capacity and height and the inverse relationship between vital capacity and ... "Vital Discovery on Poor White Problem", Johannesburg Sunday Times, 31 May 1941. Bhatia S. L. (1929). "The Vital Capacity of the ...
Forced vital capacity (FVC)[edit]. Forced vital capacity (FVC) is the volume of air that can forcibly be blown out after full ... Slow vital capacity (SVC). Slow vital capacity (SVC) is the maximum volume of air that can be exhaled slowly after slow maximum ... Forced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort. ... The most common parameters measured in spirometry are Vital capacity (VC), Forced vital capacity (FVC), Forced expiratory ...
... percentage of predicted forced vital capacity (FVC); systolic pressure of the pulmonary artery; mean pressure of the pulmonary ...
This was vital to improve capacity of the station. The new signal box became operational in late 2005 and will allow faster ...
Most people have forced vital capacity (FVC) scores above average. It has been proposed that this is the body's natural way to ... Many with Scheuermann's disease have very large lung capacities and males often have broad, barrel chests. ...
... had a decline in forced vital capacity of at least 10%. In study 006, the difference between groups in forced vital capaticy ... Mean change in forced vital capacity FVC at week 72 was -9.0% in the pirfenidone group and -9.6% in the placebo group. The ... In study 004, pirfenidone reduced decline in forced vital capacity. Mean change in FVC at week 72 was -8.0% in the pirfenidone ... Pirfenidone 1800 or 1200 mg/day reduced the mean decline in vital capacity from baseline to week 52 compared with placebo. ...
Pulmonary function test demonstrates a decrease in the forced vital capacity. Due to the chronic nature of this disease, the ... In restrictive lung disease, both forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) are reduced, ... One definition requires a total lung capacity which is 80% or less of the expected value. Medical treatment for restrictive ...
Organic carbon is vital to soil capacity to provide edaphic ecosystem services. The condition of this capacity is termed soil ... Water balance: greater soil water holding capacity reduces overland flow and recharge to groundwater; the water saved and held ...
The maximum volume of breath that can be exhaled is called the vital capacity. In particular, how much a person is able to ... Smokers have a lower capacity than nonsmokers. Thinner persons tend to have a larger capacity. Lung capacity can be increased ... The summed total of forced inspiration and expiration is a person's vital capacity. Not all air is expelled from the lungs even ... Females tend to have a 20-25% lower capacity than males. Tall people tend to have a larger total lung capacity than shorter ...
The forced vital capacity may be monitored at intervals to detect increasing muscular weakness. Acutely, negative inspiratory ...
Overall, the net change in maximum breathing capacity is zero. The tidal volume, vital capacity, inspiratory capacity and ... average vital capacity for males) weighs approximately 5.8 g. The results (in particular FEV1/FVC and FRC) can be used to ... or as a proportion of vital capacity (0.24 for men and 0.28 for women) or in relation to height and age ((0.0275* Age [Years]+ ... Functional residual capacity drops 18-20%, typically falling from 1.7 to 1.35 litres,[citation needed] due to the compression ...
The limit to development is defined by the regenerative capacity of the Earth's vital cycles. When growth begins to break that ... It is wrong to put a price on the capacity of forests to act as carbon sinks, and worse to promote their commercialization as ... Just as human beings have rights, the Mother Earth also has the right to exist, the right to maintain its vital cycles, the ... Forests are not plantations that can be reduced to their capacity to capture carbon and provide environmental services. The ...
In that capacity, Morrison played a vital role in bringing Black literature into the mainstream. One of the first books she ...
The primary test for efficacy measured the forced vital capacity, or FVC, which is a measure of lung function, defined as the ... The primary test for effectiveness was the forced vital capacity, which is a measure of lung function. It is defined as the ... It has been shown to slow down decrease in forced vital capacity, and it also improves people's quality of life. Nintedanib ... At the end of the observation period, nintedanib reduced the decline of forced vital capacity. In the study, diarrhoea was the ...
Cultural acceptability and the local capacity to maintain equipment and buy spare parts are vital. Environment. Poor rural ... Capacity building and training. Training stakeholders to take over should begin from the start of any project and continue ... Ecological footprint accounting, based on the biological concept of carrying capacity, tracks the amount of land and water area ... Sustainability in development refers to processes and relative increases in local capacity and performance while foreign ...
The maximum volume of breath that can be exhaled is called the vital capacity. In particular, how much a person is able to ... Smokers have a lower capacity than nonsmokers. Thinner persons tend to have a larger capacity. Lung capacity can be increased ... The summed total of forced inspiration and expiration is a person's vital capacity. Not all air is expelled from the lungs even ... Pulmonary plethysmographs are used to measure functional residual capacity.[72] Functional residual capacity cannot be measured ...
The enormous sea shipping capacity is vital to Saudi Arabia given the absence of international pipelines. For many years ... Generation capacity is approximately 55 GW. A looming energy shortage requires Saudi Arabia to increase its capacity. Capacity ... It projects 17 GWe of nuclear capacity by 2032 to provide 15% of the power then, along with over 40 GWe of solar capacity. IEA ... This may be attributed to the report that 110 thousand m3 (700 thousand bbl) of excess capacity are needed to compensate for a ...
Shykoff, Barbara E (2007). "Performance of various models in predicting vital capacity changes caused by breathing high oxygen ... vital capacity) and changes in expiratory function and lung elasticity. Tests in animals have indicated a variation in ... and the rate of cell damage exceeds the capacity of the systems that prevent or repair it. Cell damage and cell death then ...
... reducing the vital water-conducting capacity and induce wilting. On the other hand, the plant might be able to tolerate limited ...
... that the capacity to love is a vital, rich, and all-consuming function of the human animal. And that you can find nobility and ...
Record Growth in Photovoltaic Capacity and Momentum Builds for Concentrating Solar Power Vital Signs, June 03, 2010. "China's ... In December 2008, worldwide capacity of wind power was 122,000 MW, of which 28,190 MW was capacity added in 2008. Vestas was ... More than 200 GW of new wind power capacity could come on line before the end of 2013. Wind power market penetration is ... The world's first commercial wood-to-ethanol plant began operation in Japan in 2007, with a capacity of 1.4 million liters/year ...
An airway restriction would not produce a reduced FEV1/FVC ratio, but would reduce the vital capacity. The ventilation is ...
The rs1455782 SNP was linked to decreased forced vital capacity, which is a measure of pulmonary function. The rs12148722 SNP ...
In 1842, John Hutchinson invented the spirometer, which allowed the measurement of vital capacity of the lungs. However, his ... and the forced vital capacity (FVC), which is the greatest volume of air that can be breathed out in a single large breath. ... People with COPD also exhibit a decrease in diffusing capacity of the lung for carbon monoxide (DLCO) due to decreased surface ... These programs appear to improve exercise capacity, improve health‐related quality of life, and may lower the risk of being ...
This manifests as a reduction in lung volumes, particularly the vital capacity (VC) and total lung capacity (TLC). The TLC may ... asbestosis may produce reduction in diffusion capacity and a low amount of oxygen in the blood of the arteries. The cause of ...
Lung packing can increase the volume of air in the lungs by up to 50% of vital capacity. The pressure induced will reduce the ... The final pre-dive breath should be to full inspiratory capacity. If excited or anxious about the dive, the diver should take ... Thereafter a sequence of two breaths and 30 chest compressions is recommended, repeated until vital signs are re-established, ... lung packing or buccal pumping is a technique for inflating the lungs beyond their normal isobaric total capacity, which is ...
In this capacity he positioned NOAA to be a recognized and vital contributor to the Nation's Homeland Security effort. Kenul ...
Aerodynamic measures such as vital capacity and maximum phonation time (MPT) have also been used as an objective measure. ...
It reached its maximum about five minutes after the injection, coinciding with the maximum depression of the vital capacity. In ...
To fulfil these purposes, the project started to characterize data processes and services of vital importance for drone ... and technological excellence on a particular research topic through the durable integration of the research capacities of the ...
... believing that this would be vital in enabling him to win the war.[366] In August 1981, he travelled, via Bangkok, to Beijing, ... although he was an ally of China's Marxist-Leninist government and admitted Marxism-Leninism's capacity to bring swift economic ...
The leaf is a vital source of energy production for the plant, and plants have evolved protection against animals that consume ... increasing the capacity for gas and heat exchange, as well as photosynthesis. Strong wind forces may result in diminished leaf ... and play a crucial role in the maintenance of leaf water status and photosynthetic capacity.They also play a role in the ...
The complex also contributes to integrating modulatory and sensory inputs which feed its larger network with the capacity to ... their regulation by G-protein coupled receptors may be vital for the alteration of bursting and breathing rhythms. Other inward ...
A vital instrument of support for regionalization is the project for strengthening and reorganizing the SUS. ... The Ministry of Public Health invested some US$120 million in the development of the capacity of these laboratories. In 2000, ... with a view to enhancing the operative capacity of the SUS. The plan for the next period (2000-2003) reinforces the previous ...
Cyanobacteria has been listed as a level-4 vital article in Science, Biology. If you can improve it, please do. This article ... Many cyanobacteria have hydrogenase activity (produce or use H2). In species that have the capacity to fix free nitrogen (and ... I'm no expert on this, just drove by today and want to encourage a rewrite for this 'level 4 vital article'.--Wuerzele (talk) ...
Medicaid Demonstration Project designed to provide LADHS with federal fiscal relief to preserve vital community clinic capacity ... In 2012, the DHS system had a hospital bed capacity of 1,465. DHS hospitals had 74,811 admissions, 1,251,553 outpatient visits ...
"Man's capacity for justice makes democracy possible; but man's inclination to injustice makes democracy necessary." Niebuhr's ... "Niebuhr's Irony of American History: Still Vital at 65." The Imaginative Conservative, November 28, 2017. http://www. ... theimaginativeconservative.org/2017/11/reinhold-niebuhr-irony-american-history-still-vital-sixty-five-david-hein.html?mc_cid= ...
... of air, as part of the cycle of breathing, is a vital process for all human life. As such, it happens automatically ... Examples include pulmonary function testing (e.g. nitrogen washout test, diffusion capacity testing (carbon monoxide, helium, ...
July 15, 2011: Plant declared an Alert at 10:16 a.m after a chemical leak of sodium hypochlorite restricted access to a vital ... and this additional cooling tower meant to provide additional cooling capacity to accommodate the additional thermal output ...
The Koine Greek Septuagint uses ψυχή (psyche) to translate Hebrew נפש (nephesh), meaning "life, vital breath", and specifically ... of the capacity to be alive. For example, someone who falls asleep, as opposed to someone who falls dead, can wake up and live ... ", "life", or "vital spirit"). It is located somewhere in the abdominal cavity, often in the liver or the heart (Proto- ...
Ceylon (now Sri Lanka) was a vital asset in the Allied war effort. It was "one of the very few sources of natural rubber still ... faced significant capacity constraints that further drove up prices of Indian goods and commodities. The rise in prices of ... The productive capacity of Indian industry, which had been relatively meagre after the Great Depression, ... Rice was directed away from the starving rural districts to workers in industries considered vital to the military effort - ...
The reason most cited for this difference was that Cushing had reached capacity due to a surplus of oil in the interior of ... The area became a "vital transhipment point with many intersecting pipelines, storage facilities, and easy access to refiners ...
For example, mice with the Mini Muscle mutation were observed to have a higher per-gram aerobic capacity.[37] The mini-muscle ... increasing the risk of blood clots and possibly depriving vital organs of oxygen.[33] Some complications associated with sickle ...
The city is a vital financial center housing numerous banks, non-bank financial institutions and offices of some of the ... The largest of these is the Region 1 Medical Center with hospital bed capacity of 600. ...
"Notes on the World POPClock and World Vital Events". US Census Bureau. Retrieved February 12, 2013.. ... This feedback can be described as follows: technological advance → increase in the carrying capacity of land for people → ... the faster growth of the Earth's carrying capacity for people, and so on.[129] The transition from hyperbolic growth to slower ... estimates that the sustainable agricultural carrying capacity for the United States is about 200 million people; its population ...
These materials form the basis of our modern computing world, and hence research into these materials is of vital importance. ... No loss conductors, frictionless bearings, magnetic levitation, lossless high-capacity accumulators, electric cars, heat-free ... Thus, the processing of materials is vital to the field of materials science. ...
This funding will enhance the capacity of nursing schools to increase the number of nurses. It will also allow states to ... and other assistive personnel and support workers are also considered a vital part of health care teams.[1] ...
Before the war, Bevin had been the head of Britain's largest trade-union, the TGWU and in this capacity had led a campaign to ... Britain was at this time negotiating a loan from the United States vital to its economic survival. Its treatment of Jewish ... Britain viewed the Negev as a strategic land bridge between Egypt and Transjordan that was vital to both British and Western ... Anglo-Arab relations were of vital importance to British strategic concerns both during the war and after, notably for their ...
The DOS promotes and protects the interests of American citizens by (1) 'Promoting peace and stability in regions of vital ... he would continue in that capacity until Jefferson returned from Europe many months later. ...
With the largest of capturing capacity, IL-CCS is currently the largest BECCS project in the world.[26][27][28] ... Recognising CCS technologies as an emission reduction tool is vital for the implementation of such plants as there is no other ... The Greenville project at Ohio, USA has capacity of capturing 1 MtCO2/year. The Wallula project was planned to capture 0.75 ... Phase 2 has capturing capacity about 3 time larger than the pilot project (phase 1). Annually, IL-CCS can capture mourned 1 ...
... had the most wind energy capacity of the country with 4,900 MW of power (41% of Canada capacity).[85] ... Mining and the forest products industry, notably pulp and paper, are vital to the economy of Northern Ontario. There has been ... The move flummoxed a union representative, who seemed puzzled why a plant with capacity of 2 million tons per annum would be ...
In 1842, John Hutchinson invented the spirometer, which allowed the measurement of vital capacity of the lungs. However, his ... and the forced vital capacity (FVC), which is the greatest volume of air that can be breathed out in a single large breath.[77] ... Hoyert DL, Xu J (October 2012). "Deaths: preliminary data for 2011". National Vital Statistics Reports. 61 (6): 1-51. PMID ... People with COPD also exhibit a decrease in diffusing capacity of the lung for carbon monoxide (DLCO) due to decreased surface ...
Lundin was sentenced to 15 years imprisonment for the murder and in 1999 Lundin was released from prison for capacity reasons ... cultural heritage and vital contributions to North America of the people of Danish extraction. ...
This is equivalent to inverse of the carrying capacity, 1/K, of N, in the logistic equation. ... For example, mutualistic interactions are vital for terrestrial ecosystem function as more than 48% of land plants rely on ... Because that isn't possible due to environmental constraints and carrying capacity, a model that includes saturation would be ... for the way in which pollinator communities respond to increasingly harsh conditions and on the community carrying capacity.[18 ...
Breakpoint testing is sometimes referred to as Capacity Testing because it can be said to determine the maximum capacity below ... Specify test data needed and charter effort (often overlooked, but vital to carrying out a valid performance test) ... Stress testing is normally used to understand the upper limits of capacity within the system. This kind of test is done to ... to understand capacity and resource requirements and verify / validate quality attributes. ...
Fundamentalist ecstasy and hallelujah-shouting were a vital part of masterful, deep-voiced Alma White's faith. On it she built ... and other capacities.[107] Women often offer prayers and deliver sermons during Sunday services. Ordain Women, an activist ... dedicated and baptized male Christian who is qualified may serve in such ministerial capacities as giving public Bible ...
... a vital instrument of war.[176] The introduction of horses also intensified existing conflicts, such as those between the ... with greater weight-carrying capacity, when wearing heavy armour in actual combat.[5] ... Since horses were such a vital component of most armies in early modern Europe, many instituted state stud farms to breed ...
The Koine Greek Septuagint uses ψυχή (psyche) to translate Hebrew נפש (nephesh), meaning "life, vital breath", and specifically ... of the capacity to be alive. For example, someone who falls asleep, as opposed to someone who falls dead, can wake up and live ... vital principle' (prana), as did Aristotle. Some teach that even non-biological entities (such as rivers and mountains) possess ...
... increase in air freighted exports to Singapore despite a COVID-19 related drop in cargo capacity, according to the latest ... Singapore Link Provides Vital Cargo Capacity Thursday, 4 June 2020, 9:28 am. Press Release: Auckland Airport ... More widely, the impact of COVID-19 on the reduction in air cargo capacity is seen fully for the first time in the trade data ... "Its fantastic to see new air cargo capacity coming online. The economic benefits of these connections will flow all the way ...
"Forced Vital Capacity, Slow Vital Capacity, or Inspiratory Vital Capacity: Which is the Best Measure of Vital Capacity?". ... Vital capacity increases with height and decreases with age. Formulas to estimate vital capacity are: v c f e m a l e = ( 21.78 ... The vital capacity can be used to help differentiate causes of lung disease. In restrictive lung disease the vital capacity is ... It is approximately equal to Forced Vital Capacity (FVC). A persons vital capacity can be measured by a wet or regular ...
... in which students learn about their own vital lung capacities: the amount of air that can be forced out of the lungs in a ... Lungometer: Vital Lung Capacity. Author(s): Nancy Moreno, PhD, Barbara Tharp, MS, and Judith Dresden, MS. ... In this activity, students will make a lungometer to measure their vital lung capacity (the amount of air that can be forced ... They also will discover that people have different vital lung capacities. They will predict, model, observe and measure, graph ...
... in which students learn about their own vital lung capacities: the amount of air that can be forced out of the lungs in a ... Lungometer: Vital Lung Capacity. Author(s): Nancy Moreno, PhD, Barbara Tharp, MS, and Judith Dresden, MS. ... Lungometer: Vital Lung Capacity. This activity uses guided inquiry to illustrate that our lungs can hold much more air than we ... People differ in vital lung capacity (the amount of air they can blow out of their lungs). ...
... in which students learn about their own vital lung capacities: the amount of air that can be forced out of the lungs in a ... Lungometer: Vital Lung Capacity. Author(s): Nancy Moreno, PhD, Barbara Tharp, MS, and Judith Dresden, MS. ... To measure vital lung capacity, each student will breathe in deeply and then blow out all the air that he or she can through ... The amount of air blown into the jug represents each persons vital lung capacity. After each student has taken his or her turn ...
... in which students learn about their own vital lung capacities: the amount of air that can be forced out of the lungs in a ... Lungometer: Vital Lung Capacity. Author(s): Nancy Moreno, PhD, Barbara Tharp, MS, and Judith Dresden, MS. ... 2. As an alternative, present the lungometer as a demonstration or have each student measure his/her vital lung capacity on a ... Have students rotate jobs, so that each has an opportunity to measure his or her vital lung capacity. ...
vital function - sicherheitsrelevante Funktion. Last post 08 Jan 08, 09:17. Definition of Vital bodily function Vital bodily ... vital signs - Vitalparameter. Last post 27 Jan 09, 23:09. Vital signs (blood pressure, pulse rate, respiration rate) ... vital - vital. Last post 08 Feb 11, 08:49. Siehe hier: http://www.spiegel.de/kultur/zwiebelfisch/0,1518,249842,00.html "vital" ... vegete - vital. Last post 06 Nov 12, 11:05. "I love to be my own master, when my spirits are prompt, when my brain is vegete ...
... vital capacity explanation free. What is vital capacity? Meaning of vital capacity medical term. What does vital capacity mean? ... Looking for online definition of vital capacity in the Medical Dictionary? ... Related to vital capacity: tidal volume, total lung capacity, forced vital capacity ... diffusing capacity see diffusing capacity.. forced vital capacity the maximal volume of gas that can be exhaled from full ...
Innovation Paradox Analyzes Key Factors in Spurring Growth: Managerial Skill, Innovation Capacity are Vital to Raising ... which shape enabling environments that offer little support for innovative thinking and that have little capacity to design and ...
Forced Expiratory Volume and Forced Vital Capacity. Topic Overview. Forced expiratory volume (FEV) measures how much air a ... Forced vital capacity (FVC) is the total amount of air exhaled during the FEV test. ... Forced expiratory volume and forced vital capacity are lung function tests that are measured during spirometry. Forced ...
Forced vital capacity (FVC), a spirometric measure of pulmonary function, reflects lung volume and is used to diagnose and ... Forced vital capacity (FVC), a spirometric measure of pulmonary function, reflects lung volume and is used to diagnose and ... 2014). Genome-wide association analysis identifies six new loci associated with forced vital capacity. Nature Genetics, 46(7), ... Genome-wide association analysis identifies six new loci associated with forced vital capacity. ...
... is set to see its storage capacity rise after an oil storage and service provider said it would complete its storage expansion ... Vital Oil Export Hub In Middle East To Expand Storage Capacity. By Charles Kennedy - Jul 01, 2020, 12:30 PM CDT ... The expanded storage capacity will consist of eight oil storage tanks with a total capacity of 3.8 million barrels of oil.. ... The company also plans a Phase III expansion at the Port of Fujairah, which is expected to provide capacity for an additional ...
Rapidly decreasing forced expiratory volume in one second or vital capacity and development of chronic airflow obstruction.. ... 325 demonstrated a yearly decline in FEV1 and/or in vital capacity (VC) that was significantly faster than that expected in ...
Percentage of Patients With Disease Progression as Defined by Absolute Forced Vital Capacity (FVC) Decline ,=10% or Death Until ... Relevant airways obstruction, i.e. pre-bronchodilator Forced expiratory volume in 1 second / Forced vital capacity , 0.70; ... on Biomarkers of Extracellular Matrix Turnover in Patients With Idiopathic Pulmonary Fibrosis and Limited Forced Vital Capacity ... and Limited Forced Vital Capacity (FVC) Impairment.. ... Forced vital capacity (FVC) ,=80% of predicted normal at Visit ...
Fikadu Gebrehawariat, on his part said that there is a plan to upgrade student capacity, and stressed the importance of holding ... Bokretsion Habtemichael, stressed the importance of the role of parents in promoting student capacity. The residents of the ... Bokretsion Habtemichael, stressed the importance of the role of parents in promoting student capacity. The residents of the ...
... of vital capacity) to one sensitive to lung size (vital capacity) was examined … ... vital capacity)-1. Data for 21 men 20 to 50 yr of age showed that the ratio to decreased approximately as (vital capacity)-4/3 ... of vital capacity) to one sensitive to lung size (vital capacity) was examined. If lung and airway size changed together, this ... Dysanapsis in normal lungs assessed by the relationship between maximal flow, static recoil, and vital capacity Am Rev Respir ...
... and the amount that we blew out vital capacity (VC). So our total lung capacity (TLC) equals our vital capacity (VC) plus our ... Keeping our vital capacity where it needs to be will maintain our oxygen levels; and improving our vital capacity certainly ... There is a lot of talk about vital capacity (VC) when we talk about what assists good oxygenation. What is vital capacity? When ... In most studies, athletes and mountain climbers have larger vital capacities than the average person. Larger vital capacities ...
Lastly, height is a factory that affects the vital capacity of the lungs. Height and vital capacity share a positive ... Vital capacity is increased and strengthened after physical activity and the rate of breathing also is increased depending on ... An investigation on the changes in tidal volume and vital capacity of lungs before ... Inhale normally. Put mouthpiece in mouth ... This study is focused on the differences in the vital capacity between subjects that have asthma and those that do not. ...
Global Hydropower Installed Capacity and Use Increase: The world is consuming an increasing amount of hydropower, and ... Global installed capacity of hydropower also experienced increases over the past several years. Installed capacities increased ... Global Hydropower Installed Capacity and Use Increase. Matt Lucky , Jan 17, 2012 ... the total global installed capacity of hydropower was 1,010 GW.8 ...
Reduced vital capacity in elderly persons with hypertension, coronary heart disease, or left ventricular hypertrophy. The ...
In patients with biopsy-proven IPF (n = 84) and NSIP (n = 72), forced vital capacity (FVC) and diffusing capacity of the lung ... for forced vital capacity (FVC) and 15% for diffusing capacity of the lung for carbon monoxide (DL,CO) 1. Decline of a lesser ... Marginal decline in forced vital capacity is associated with a poor outcome in idiopathic pulmonary fibrosis. C. J. Zappala, P ... 4-yr survival in relation to the magnitude of serial change in forced vital capacity at 6 months in patients with idiopathic ...
BACKGROUND: Decline in forced vital capacity (FVC) over time reliably predicts mortality in patients with idiopathic pulmonary ... BACKGROUND: Decline in forced vital capacity (FVC) over time reliably predicts mortality in patients with idiopathic pulmonary ... Relative versus absolute change in forced vital capacity in idiopathic pulmonary fibrosis ... Relative versus absolute change in forced vital capacity in idiopathic pulmonary fibrosis ...
Forced Expiratory Volume and Forced Vital Capacity. Topic Overview. Forced expiratory volume (FEV) measures how much air a ... Forced expiratory volume and forcedvital capacityare lung function tests that are measured duringspirometry. Forced expiratory ... Forced vital capacity (FVC) is the total amount of air exhaled during the FEV test. ... Home , Patients & Visitors , Health Library , Forced Expiratory Volume and Forced Vital Capacity ...
... relative decline in percent predicted forced vital capacity (%FVC) in patients with idiopathic pulmonary fibrosis (IPF) ... relative decline in percent predicted forced vital capacity (%FVC) in patients with idiopathic pulmonary fibrosis (IPF) ...
Strong organizational capacity of farmers vital in boosting milk, vegetable and fruits production, Says Administrator. Local ... Strong organizational capacity of farmers vital in boosting milk, vegetable and fruits production, Says Administrator. ... Gergis Girmai, stressed the need for farmers to redouble endeavors and establish strong organizational capacity so as to boost ... Gergis Girmai, stressed the need for farmers to redouble endeavors and establish strong organizational capacity so as to boost ...
All subjects were studied the day before surgery (T0) and on postoperative day one (T1). Forced Vital Capacity (FVC) was ... Preoperative changes of forced vital capacity due to body position do not correlate with postoperative respiratory function in ... that preoperative changes in dynamic spirometry due to body posture would correlate with the drop of forced vital capacity (FVC ...
It is the vital energy to make choices and decisions. It also includes the capacity to overcome deeply embedded habits and to ... Power is the faculty or capacity to act, the strength and potency to accomplish something. ... It is the vital energy to make choices and decisions. It also includes the capacity to overcome deeply embedded habits and to ... Power is the faculty or capacity to act, the strength and potency to accomplish something. ...
Vital capacity changed slightly, suggesting mild respiratory disturbance conductance (dvr) respiratory tract reve more Vital ... vital capacity)? What is the average no more How bad does it mean when spirometry results only show the number 300 ml (vital ... Vital capacity changed slightly, suggesting mild respiratory disturbance conductance (dvr) respiratory tract revealed. Result ... Vital capacity changed slightly, suggesting mild respiratory disturbance conductance (dvr) respiratory tract revealed. Result ...
Usefulness of the forced expiratory volume in six seconds (FEV6) as an alternative for the forced vital capacity (FVC) in ... Usefulness of the forced expiratory volume in six seconds (FEV6) as an alternative for the forced vital capacity (FVC) in ... diagnostic parameters are the forced vital. capacity (FVC), the forced expiratory volume in. one second (FEV1) and the FEV1/FVC ... reliably predict a reduced total lung capacity.. These algorithms could help clinicians,. particularly in primary care, to ...
Journal of Clinical and Diagnostic Research aims to publish findings of doctors at grass root level and post graduate students, so that all unique medical experiences are recorded in literature.
  • Forced expiratory volume and forced vital capacity are lung function tests that are measured during spirometry . (uwhealth.org)
  • Spirometry is the pulmonary function test used to determine forced vital capacity. (verywellhealth.com)
  • We hypothesized that preoperative changes in dynamic spirometry due to body posture would correlate with the drop of forced vital capacity (FVC) measured early after surgery. (minervamedica.it)
  • For the interpretation of spirometry, the commonly used diagnostic parameters are the forced vital capacity (FVC), the forced expiratory volume in one second (FEV1) and the FEV1/FVC ratio. (vub.be)
  • Finally, gender-specific algorithms were developed that define patient groups for which spirometry (FVC or FEV6) can reliably predict a reduced total lung capacity. (vub.be)
  • 1) Godfrey MS, Jankowich MD. (2016) The Vital Capacity Is Vital: Epidemiology and Clinical Significance of the Restrictive Spirometry Pattern . (thecalculator.co)
  • Measuring forced vital capacity (FVC) is part of a spirometry or pulmonary function test that is conducted to assess lung health, airflow, and help in disease diagnosis and effectiveness of medical treatment. (airofit.com)
  • Unlike spirometry and diffusing capacity of the lung for carbon monoxide (DLCO), which do contribute to confirming or excluding a diagnosis, there are few clear indications when lung volumes are discriminatory.Breathing is one of those critical bodily functions that, for most of us, we carry on daily with hardly a conscious thought. (loadtiger.ga)
  • To take a spirometry test, you sit and breathe into a small machine called a spirometer.Forced vital capacity can decrease by about 0.2 liters per decade, even for healthy people who have never smoked. (loadtiger.ga)
  • Spirometry variables, including forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), FEV1/FVC, peak expiratory flow rate (PEF), forced expiratory flow between 25% and 75% expired volume (FEF25-75), were recorded and interpreted. (thefreedictionary.com)
  • The current threshold values used to define "significant decline" are a reduction from baseline values of 10% for forced vital capacity (FVC) and 15% for diffusing capacity of the lung for carbon monoxide ( D L,CO ) 1 . (ersjournals.com)
  • Analyses were performed unadjusted and adjusted for age, gender, use of oxygen, baseline FVC and baseline diffusion capacity for carbon monoxide. (soton.ac.uk)
  • FVC (percent predicted), diffusing capacity for carbon monoxide (percent predicted), and various clinical and laboratory parameters were recorded. (semanticscholar.org)
  • Pulmonary Function Test: WTC-sarcoid patients had lower diffusing capacity of carbon monoxide (DLCO) at diagnosis when compared to a representative sub-cohort of WTC dust exposed firefighters, although the DLCO for both groups were in the normal range. (cdc.gov)
  • closing capacity (CC) the volume of gas in the lungs at the time of airway closure, the sum of the closing volume and the residual volume . (thefreedictionary.com)
  • We call the amount still left residual volume (RV) and the amount that we blew out vital capacity (VC). (nacd.org)
  • So our total lung capacity (TLC) equals our vital capacity (VC) plus our residual volume (RV). (nacd.org)
  • The amount that you exhale and breathe from your lungs, which is measured in the forced vital capacity tests, also indicates the residual volume , which is another important measurement of your lung function. (airofit.com)
  • Taking deeper breath decreases the residual volume, and at the same time, increases the capacity of your lungs, thus providing you with greater volumes of air inhaled and exhaled through each breath. (airofit.com)
  • Vital capacity is the maximum volume of air that a person can inspire after forcefully and maximally exhaling, while residual volume is the volume of air remaining in the lungs after such a forceful exhalation.The correct way the measure vital capacity is by using aspirometer. (loadtiger.ga)
  • There are a number of different measurements and terms which are often used to describe this including tidal volume, inspiratory reserve volume, residual volume, vital capacity and more. (teachpe.com)
  • This is the vital lung capacity plus the residual volume and is the total amount of air the lungs can hold. (teachpe.com)
  • In a prospective study of 2,406 members of the Belgian Air Force, followed for 3 to 15 yr, 325 demonstrated a yearly decline in FEV1 and/or in vital capacity (VC) that was significantly faster than that expected in healthy nonsmokers. (nih.gov)
  • 3. Forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) are measured during a pulmonary function test. (riverinaromantics.com)
  • Pulmonary functional capacities, vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in one second (FEV1) and maximum voluntary ventilation (MVV) of 493 top athletes belonging to 15 different sports disciplines and of 16 sedentary individuals were studied. (riverinaromantics.com)
  • WTC-Sarcoid cases had similar FEV1, forced vital capacity (FVC), FEV1/VC, functional residual capcity (FRC), methacholine challenge test (MCT) slope and bronchodilator response at time of diagnosis when compared to controls. (cdc.gov)
  • functional residual capacity the amount of gas remaining at the end of normal quiet respiration. (thefreedictionary.com)
  • The spirometer, as part of the basic ventilator pulmonary function test, is used to measure the vital capacity amongst the other lung volumes and other functional parameters such as the peak expiratory flow rate . (thecalculator.co)
  • decreased intracranial adaptive capacity a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as the state in which intracranial fluid dynamic mechanisms that normally compensate for increases in intracranial volumes are compromised, resulting in repeated disproportionate increases in intracranial pressure in response to a variety of noxious and nonnoxious stimuli. (thefreedictionary.com)
  • Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. (wikipedia.org)
  • Lung volumes are directly measured, whereas lung capacities are inferred from volumes. (wikipedia.org)
  • This vital capacity calculator determines the vital capacity in litres based on tidal volume, inspiratory and expiratory reserve volumes. (thecalculator.co)
  • Obtain graphical representation of lung capacities and volumes. (vernier.com)
  • It is the sum of tidal volume, inspiratory reserve volume and … vital capacity synonyms, vital capacity pronunciation, vital capacity translation, English dictionary definition of vital capacity. (riverinaromantics.com)
  • The body mass is an important parameter in determining the tidal volume and the vital capacity. (riverinaromantics.com)
  • The tidal volume, vital capacity, inspiratory capacity and expiratory reserve volume can be measured directly with a spirometer. (riverinaromantics.com)
  • Laboratory values for vital capacity, forced vital capacity, forced expiratory volume, and forced expiratory flow are usually reported both as absolute values and as statistically derived predicted values based on the age, sex, and height of a patient. (thefreedictionary.com)
  • Rapidly decreasing forced expiratory volume in one second or vital capacity and development of chronic airflow obstruction. (nih.gov)
  • Normal values of forced vital capacity (FVC), forced expiratory volume (FEV 1-0), and peak flow rate (PFR) in children. (bmj.com)
  • Lung function is significantly affected in cases of pulmonary agenesis, demonstrated by reduction in forced expiratory volume and forced vital capacity. (wikipedia.org)
  • A person's vital capacity can be measured by a wet or regular spirometer. (wikipedia.org)
  • Researcher measured vital capacity of students from spirometer. (theyogicjournal.com)
  • The vital capacity can be measured with the use of a spirometer , which can also separate the different components of the vital capacity. (waldenwoods.nl)
  • Another exceedingly useful clinical pulmonary test, and one that is also simple, is to make a record on a spirometer of the forced expiratory vital capacity(FVC). (brainkart.com)
  • In this activity, students will make a lungometer to measure their vital lung capacity (the amount of air that can be forced out of the lungs in a single breath). (bioedonline.org)
  • Students will learn that the maximum amount of air that can be blown out of the lungs after taking a deep breath is known as vital lung capacity. (bioedonline.org)
  • Students will learn that the maximum amount of air that can be blown out of the lungs after taking a deep breath is known as vital lung capacity, and they will build a "Lungometer" to measure their own vital lung capacity. (bioedonline.org)
  • Forced vital capacity, or FVC, is defined as the amount of air that can be forcibly exhaled from the lungs after taking the deepest breath possible. (verywellhealth.com)
  • Vital capacity is a measure of the maximum amount of air you can forcefully inhale after you forcefully exhale, which is greater than a normal breath. (riverinaromantics.com)
  • To measure diffusion capacity , you breathe a harmless gas, called a tracer gas, for a very short time, often for only one breath. (medlineplus.gov)
  • The aim of the research was to examine the changes in respiratory function in sedentary students after completing a 12-week physical activity program in relation to heart rate, respiratory rate, vital capacity and breath holding after expiration and inspiration [4] . (wikibooks.org)
  • Breath holding capacity after both inspiration and expiration following the program was found to be not significant [4] . (wikibooks.org)
  • According to Ancient Greek physicians, vital heat was produced by the heart, maintained by the pneuma (air, breath, spirit or soul), and circulated throughout the body by blood vessels, which were thought to be intact tubes using blood to transmit heat. (wikipedia.org)
  • In the 11th century, Avicenna agreed with this notion, stating that the heart produced breath, the "vital power or innate heat" within the body, in his Canon of Medicine. (wikipedia.org)
  • The First Second Timed vital capacity and the course of obstructive lung diseases. (waldenwoods.nl)
  • Obstructive lung diseases cause hyperinflation (increase in RV and FRC) with a relatively normal forced vital capacity (FVC). (waldenwoods.nl)
  • Reduced vital capacity in chronic obstructive pulmonary disease. (waldenwoods.nl)
  • We hypothesized that a larger difference between VC and FVC (VC-FVC) would predict impaired exercise capacity in patients with chronic obstructive pulmonary disease (COPD). (riverinaromantics.com)
  • Several studies have been made to measure and predict vital capacity. (wikipedia.org)
  • OBJECTIVE To determine the ability of initial forced vital capacity (FVC) of patients with scleroderma to predict subsequent pulmonary function deterioration. (semanticscholar.org)
  • The amount of air blown into the jug represents each person's vital lung capacity. (bioedonline.org)
  • On July 1, 2020, the Global Environment Facility (GEF) approved Gambia's mid-sized program on the Capacity Building Initiative for Transparency (CBIT) for " Strengthening Capacity of Institutions in the Gambia to Meet the Transparency Requirements of the Paris Agreement . (vitalsigns.org)
  • Funded through the newly established Capacity Building Initiative for Transparency(CBIT) the project aims to build Kenya's institutional and technical capacities to meet the requirements of the transparency framework under the Paris Agreement on climate change. (vitalsigns.org)
  • The Capacity Building Initiative for Transparency (CBIT) was established at COP 21 to support developing countries to enhance transparency requirements as defined in Article 13 of the Paris agreement in a timely manner. (vitalsigns.org)
  • Vital capacity increases with height and decreases with age. (wikipedia.org)
  • Global installed capacity of hydropower also experienced increases over the past several years. (worldwatch.org)
  • Taller individuals tend to have higher vital capacities, with differences of 0.8 litres for increases of 15 cm (6 in) in height. (thecalculator.co)
  • Research in people demonstrates breathing practices such as pranayama increase vital capacity and respiratory function, which in turn increases energy production and improves biomarkers of cellular activity. (holisticactions.com)
  • Only a third of this capacity is used during normal activity, but this fraction increases during strenuous activity when the body requires more oxygen. (loadtiger.ga)
  • VC is different from residual capacity as the latter represents the volume of air present in the lungs at the end of expiration. (thecalculator.co)
  • 2) Steltner H, Vogel M, Sprung E, Timmer J, Guttmann J, Sorichter S. (2004) Incomplete forced expiration - estimating vital capacity by a mathematical method. (riverinaromantics.com)
  • Vital capacity (VC) is frequently measured by two different methods (inspiration vs expiration). (riverinaromantics.com)
  • This report concerns a study of the vital capacity in 88 cases of bronchial asthma under varying conditions.Forced vital capacity (FVC) - volume of lungs from full inspiration to forced maximal expiration. (loadtiger.ga)
  • total lung capacity the amount of gas contained in the lung at the end of a maximal inhalation. (thefreedictionary.com)
  • Forced vital capacity (FVC) is the total amount of air exhaled during the FEV test. (uwhealth.org)
  • Industry output is maximized (i.e. full capacity is attained) when all firms produce at the minimum point on their long-run average total cost curves (see PERFECT COMPETITION ). (thefreedictionary.com)
  • When we talk about how much air our lungs can hold, we can say that the entire lung has a total capacity. (nacd.org)
  • Total Lung Capacity (TLC) is the amount of air our lungs can hold when completely full. (nacd.org)
  • 7 At the end of 2010, the total global installed capacity of hydropower was 1,010 GW. (worldwatch.org)
  • The total lung capacity and forced vital capacity is decreased. (waldenwoods.nl)
  • Vital lung capacity is the total amount of air that your lungs can hold. (riverinaromantics.com)
  • Forced vital capacity is the total amount of air that can be exhaled following a deep inhalation in an FVC test. (airofit.com)
  • In normal breathing at rest, approximately one-tenth of the total lung capacity is used. (vernier.com)
  • Vital Capacity is the maximal amount of air that can be expired after a maximal inspiration.The average total lung capacity of an adult human male is about 6 litres of air. (loadtiger.ga)
  • Total lung capacity: the volume in the lungs at maximal inflation, the sum of VC and RV. (wikipedia.org)
  • A 12-week, Double Blind, Randomised, Placebo Controlled, Parallel Group Trial Followed by a Single Active Arm Phase of 40 Weeks Evaluating the Effect of Oral Nintedanib 150 mg Twice Daily on Change in Biomarkers of Extracellular Matrix (ECM) Turnover in Patients With Idiopathic Pulmonary Fibrosis (IPF) and Limited Forced Vital Capacity (FVC) Impairment. (clinicaltrials.gov)
  • Association of hospital admission and forced vital capacity endpoints with survival in patients with idiopathic pulmonary fibrosis: analysis of a p. (nih.gov)
  • BACKGROUND: Decline in forced vital capacity (FVC) over time reliably predicts mortality in patients with idiopathic pulmonary fibrosis. (soton.ac.uk)
  • In the Phase III INPULSIS® trials, 52 weeks' treatment with nintedanib reduced decline in forced vital capacity (FVC) versus placebo in patients with idiopathic pulmonary fibrosis (IPF). (semanticscholar.org)
  • Forced vital capacity in idiopathic pulmonary fibrosis--FDA review of pirfenidone and nintedanib. (semanticscholar.org)
  • Students with asthma or other breathing problems should not measure their vital lung capacities. (bioedonline.org)
  • This study is focused on the differences in the vital capacity between subjects that have asthma and those that do not. (markedbyteachers.com)
  • Sample Calculation The mean of participants who had asthma: Mean = (2.3+2.3+3.0+2.9+3.3) / 5 Mean = (13.8) / 5 Mean = 2.76 The mean of participants who didn't have asthma: Mean = (2.9+3.5+3.3+3.4+3.3) / 5 Mean = (16.4) / 5 Mean = 2.76 Data Presentation Figure 3: The comparison between the average vital capacity of asthmatic and non asthmatic participants. (markedbyteachers.com)
  • A portable instrument that detects minute decreases in air flow, used by people with asthma to monitor small changes in breathing capacity. (thefreedictionary.com)
  • To measure vital lung capacity, each student will breathe in deeply and then blow out all the air that he or she can through the tubing into the jug. (bioedonline.org)
  • Have students rotate jobs, so that each has an opportunity to measure his or her vital lung capacity. (bioedonline.org)
  • 2. As an alternative, present the lungometer as a demonstration or have each student measure his/her vital lung capacity on a lungometer you have made. (bioedonline.org)
  • Forced Vital Capacity, Slow Vital Capacity, or Inspiratory Vital Capacity: Which is the Best Measure of Vital Capacity? (wikipedia.org)
  • Forced vital capacity (FVC), a spirometric measure of pulmonary function, reflects lung volume and is used to diagnose and monitor lung diseases. (rti.org)
  • Use the Vital Lung Capacity test every few weeks (provided you are doing posture exercises regularly) to measure your progress. (posturevideos.com)
  • So if you breathe in as much as you physically can and then measure the amount of air you can breathe out then this is known as the vital capacity. (teachpe.com)
  • Installed capacities increased by 30 gigawatts (GW), or about 3.0 percent a year, in 2008, 2009, and 2010. (worldwatch.org)
  • Global installed nuclear generating capacity has declined in 2011, falling to 366.5 gigawatts (GW). (worldwatch.org)
  • Health education appears not to prevent impairment of the vital capacity associated with tobacco consumption. (wku.edu)
  • citation needed] A normal adult has a vital capacity between 3 and 5 litres. (wikipedia.org)
  • Strengthening national institutions and capacities in Kenya to enhance MRV transparency in line with Kenya's national priorities. (vitalsigns.org)
  • Forced vital capacity (FVC) is the greatest volume of air that can be expelled when a person performs a rapid, forced exhalation, which usually takes about five seconds. (thefreedictionary.com)
  • the maximum volume of air that can be expelled at the normal rate of exhalation after a maximum inspiration, representing the greatest possible breathing capacity. (thefreedictionary.com)
  • A slow vital capacity (SVC) is the volume of air expired, but this time through an unforced maneuver. (riverinaromantics.com)
  • Forced vital capacity is a measurement of lung size (in liters) and represents the volume of air in the lungs that can be exhaled following a deep inhalation. (airofit.com)
  • Vital capacity (VC) refers to the maximal volume of air that can be expired following maximum inhalation. (airofit.com)
  • Current research focuses only on measuring the physical mechanisms of breathing and lung function by pulmonary functions such as vital capacity (VC), which is defined as the maximal volume of air expired after a full inspiration. (holisticactions.com)
  • Vital capacity: the volume of air breathed out after the deepest inhalation. (wikipedia.org)
  • Vital lung capacity is the amount of air that can be moved in and out of your lungs within one respiratory cycle. (airofit.com)
  • Forced vital capacity (FVC) is a very important pulmonary function measurement that is used to evaluate a wide range of lung diseases. (verywellhealth.com)
  • To quantify the degree of association, if any, between lung size and airway size in humans, the ratio of a measurement known to be sensitive to airway size (maximal expiratory flow divided by static recoil pressure at 50% of vital capacity) to one sensitive to lung size (vital capacity) was examined. (nih.gov)
  • Read further to understand why forced vital capacity is an important measurement to be aware of, to understand how it is tested, and to see why breathing training is a tool to help you improve your forced vital capacity. (airofit.com)
  • Definition of Vital bodily function Vital bodily function: 1. (leo.org)
  • Definition of vital capacity in the Definitions.net dictionary. (riverinaromantics.com)
  • The purpose of this study was estimate the effect of tobacco consumption on vital capacity after four months of participation in a theoretical-practical program on movement fundamentals. (wku.edu)
  • Course-Navette test was carried out to estimate vital capacity (heart rate at rest, maximum heart rate, physical level, VO2 max, distance and average speed). (wku.edu)
  • One of these is vital capacity - the highest level of air volume a device can exhale or inspire during a forced vital capacity (FVC) or a slow vital capacity (VC) maneuver. (differencebetween.net)
  • Two types of blows are done: the first is the "relaxed" slow vital capacity (VC), followed by forced vital capacity (FVC). (differencebetween.net)
  • the first is the "relaxed" and slow vital capacity (VC), followed by forced vital capacity (FVC). (differencebetween.net)
  • Vital capacity may be measured as inspiratory vital capacity (IVC), slow vital capacity (SVC), or forced vital capacity (FVC). (airofit.com)
  • Some observations on the variation in height coefficients in prediction equations for forced vital capacity. (cdc.gov)
  • Forced vital capacity will be reported as both a number in liters for an absolute value and on a linear graph to chart the dynamics of your exhalation. (verywellhealth.com)
  • The present study was conducted to assess the Effect of Isochronal Aerobic Training on Vital Capacity, Peak Flow Rate and Body Mass Index in College males. (kheljournal.com)
  • According to most studies, a minor difference in vital capacity occurs in healthy individuals if the forced maneuver is opted for instead of the slow maneuver. (differencebetween.net)
  • Forced Vital Capacity (FVC) is an important predictor of all-cause mortality in the absence of chronic respiratory conditions. (uta.fi)
  • In restrictive lung disease the vital capacity is decreased. (wikipedia.org)
  • and improving our vital capacity certainly suggests that we can improve our oxygen levels. (nacd.org)
  • Larger vital capacities can help keep oxygen at levels where we have more oxygen available to the brain and body. (nacd.org)
  • The trillions of cells in the body require an abundant and continuous supply of oxygen to carry out their vital functions. (nurseslabs.com)
  • People differ in vital lung capacity (the amount of air they can blow out of their lungs). (bioedonline.org)
  • Vital capacity (VC) is the maximum amount of air a person can expel from the lungs after a maximum inhalation. (wikipedia.org)
  • Forced vital capacity and vital capacity record similar information, but FVC refers to the amount of air you can exhale forcefully, while VC records the maximum amount of air that can be exhaled when breathing normally. (verywellhealth.com)
  • As for the lungs, this limit is referred to as the maximum amount of air that the lungs are able to contain, or the vital capacity. (markedbyteachers.com)
  • Vital capacity is defined as the maximum amount of air possible to be expelled after a maximum inhalation. (thecalculator.co)
  • In contrast, the vital capacity is the amount of air a person expires after a maximum, forced inhalation. (riverinaromantics.com)
  • Vital capacity is the maximum amount of air that can be exhaled after a maximum inhalation. (riverinaromantics.com)
  • Forced vital capacity is the amount of air that can be forcibly exhaled from your lungs after inhaling as deeply as possible. (airofit.com)
  • Vital Lung Capacity (VTC) is defined as the maximum amount of air a person can expel from the lungs after a maximum inhalation. (posturevideos.com)
  • Vital capacity (VC) is the maximum amount of air that can be inhaled or exhaled from the lung. (loadtiger.ga)
  • Vital Signs Updates. (worldwatch.org)
  • This project was approved with Conservation International (CI) as the Implementing Agency while Gambia's Ministry of Environment, Climate Change & Natural Resources, and CI's Vital Signs program as executing entities. (vitalsigns.org)
  • The project will be executed by the Ministry of Environment and Natural Resources (MENR) through the Climate Change Directorate(CCD) and System for Land based Emissions Estimations in Kenya(SLEEK) , the Vital Signs Programme and the Green House Gas Management Institute(GHGMI). (vitalsigns.org)
  • Vital Signs is committed to building local, national and global capacity to synthesize integrated information and use it to design smart, effective policies and practices that will sustain natural resources and agroecosystem services. (vitalsigns.org)
  • Lung function typically is measured as forced vital capacity (FVC). (thefreedictionary.com)
  • This health tool determines the vital capacity based on the results from several lung function tests. (thecalculator.co)
  • maximal breathing capacity maximum voluntary ventilation . (thefreedictionary.com)
  • The maximum rate of output which the firm can produce will depend upon the capacity of its individual factories which in turn depends upon the capacity of various departments and work stations within each factory See INPUT-OUTPUT CONTROL , PRODUCTION SCHEDULING , PRODUCTION-LINE BALANCING . (thefreedictionary.com)
  • Scleroderma lung: initial forced vital capacity as predictor of pulmonary function decline. (semanticscholar.org)
  • article{Plastiras2006SclerodermaLI, title={Scleroderma lung: initial forced vital capacity as predictor of pulmonary function decline. (semanticscholar.org)
  • virus neutralizing capacity the ability of a serum to inhibit the infectivity of a virus. (thefreedictionary.com)

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