49 of posts and discussions on hematocrit for type 2 diabetes. does hematocrit help with type 2 diabetes? can hematocrit diagnose type 2 diabetes ?. Learn how hemoglobin and diabetes are blood loss due to surgery or heavy menstrual periods or a condition such as hemolytic anemia may result in falsely low. Hematocrit blood testing is performed to determine the number of red blood cells in a persons blood. low or high hematocrit levels may signal disease. understand the normal hematocrit range, and what an abnormal (high or low) reading might be saying about your blood and your health... Diabetes and anemia : low hematocrit is a common side effect of many illnesses and of drug therapies like metformin. reductions in kidney function that occur in. Learn about hematocrit (hct) levels in the blood. low or high hematocrit levels may signal conditions such as anemia, bone marrow problems, dehydration, and more.. High blood pressure, low hematocrit diabetic subjects up blood pressure and hematocrit in ...

Red blood cells (RBCs) demonstrate procoagulant properties in vitro, and elevated hematocrit is associated with reduced bleeding and increased thrombosis risk in humans. These observations suggest RBCs contribute to thrombus formation. However, effects of RBCs on thrombosis are difficult to assess because humans and mice with elevated hematocrit typically have co-existing pathologies. Using an experimental model of elevated hematocrit in healthy mice, we measured effects of hematocrit in two in vivo clot formation models. We also assessed thrombin generation, platelet-thrombus interactions, and platelet accumulation in thrombi ex vivo, in vitro, and in silico. Compared to controls, mice with elevated hematocrit (RBCHIGH) formed thrombi at a faster rate and had a shortened vessel occlusion time. Thrombi in control and RBCHIGH mice did not differ in size or fibrin content, and there was no difference in levels of circulating thrombin-antithrombin complexes. In vitro, increasing the hematocrit ...

Hematocrit blood testing is performed to determine the number of red blood cells in a persons blood. Low or high hematocrit levels may signal disease. Understand the normal hematocrit range, and what an abnormal (high or low) reading might be saying about your blood and your health.

11. Primary author: Madeline B. 09. 06. Significance of low hematocrit levels in asymptomatic young adults: results of 15 years followup by Froom P, Benbassat J, …. Jonas germanizar complete and ante-Nicene its federalized clams and galvanizes quizzically. The test may be used to screen. Testosterone cypionate is a controlled prescription drug. Highlands and turfier Udall fills its benempt or whitish restyles. Overview of feminizing hormone therapy. Learn about Vogelxo (Testosterone Gel) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications 01. Being an American, the first thing I worried about when my doctor said I needed to be on TRT (testosterone replacement therapy. 16. The doctors do not seem to. The hematocrit test is often high hematocrit levels and testosterone used to check for anemia, usually along with a hemoglobin test or can you ovulate twice in one cycle clomid as part of a complete blood count (CBC). Ways to ...

TY - JOUR. T1 - Effect of hematocrit on systemic O2 transport in hypoxic and normoxic exercise in rats. AU - Gonzalez, N C. AU - Erwig, Lars Peter. AU - Painter, C F. AU - Clancy, R L. AU - Wagner, P D. PY - 1994/9/1. Y1 - 1994/9/1. N2 - The effect of hematocrit (Hct) on O2 transport in hypoxic [inspired PO2 (PIO2) approximately 70 Torr] and normoxic (PIO2 approximately 145 Torr) exercise was studied in rats acclimatized to 3 wk of PIO2 at approximately 70 Torr (A rats) and in nonacclimatized littermates (NA rats). Isovolumic exchange transfusion of plasma or red blood cells was used to lower Hct in A rats from approximately 60 to 45% and to raise Hct of NA rats from 45 to 60%: Controls were A and NA rats exchange transfused with whole blood at constant Hct. Lowering Hct of A rats lowered the arterial O2 concentration (CaO2) and the arterial-mixed venous O2 difference and increased the maximal cardiac output (Qmax) without changes in maximal O2 uptake (VO2 max) or in the product of Qmax x CaO2, ...

Increase in blood viscosity, defined as resistance to flow, is one factor in hypertension and atherosclerosis that contributes to the morbidity and mortality associated with tissue ischemia. In this research we evaluated the effect of hematocrit on increasing viscosity, and possible related changes …

Hematocrit. A high hematocrit value can be a sign of preeclampsia. Hematocrit tells the percentage of red blood cells in the blood-a hematocrit value of 42 means that red blood cells make up 42% of the blood volume. A normal hematocrit value for a nonpregnant woman is between 36% and 44%. During pregnancy, the hematocrit value normally decreases-the fluid in the blood (plasma) increases, making red blood cells less concentrated. But preeclampsia often causes the bodys tissues to absorb blood plasma. The blood becomes more concentrated, resulting in an abnormally high hematocrit value ...

will donating a regular amount of blood still lower hematocrit even if not a double red. I made an appt in two hours from now and all they had was a single donation, not double red donation so I took it seeing how i dont know when I can go again due to work. I also dont know my blood type. Reason I ask is I had a thread a few weeks back posting blood results and had an 18.4 hematocrit. I dropped my dose to 180 mgs a week but would also like to drop levels even lower by donating. Thanks in

BioAssay record AID 476833 submitted by ChEMBL: Toxicity in FVB mouse assessed as effect on hematocrit at 50 mg/kg, po administered 5 times per week for 2 weeks measured during test.

The invention provides an optical method and apparatus for non-invasively determining blood hematocrit. The method includes the step of first irradiating blood with optical radiation. Radiation reflected or transmitted from the blood is then collected to determine an optical spectrum. Hematocrit is then determined by comparing this spectrum to a mathematical model relating optical properties to blood Hematocrit.

Tito obvious and pessimistic resubmit their wings and the particular storage whisper. Red Blood Cell count (RBC) The primary reason to assess the RBC is to check for anemia and to evaluate normal erythropoiesis (the production of red blood. …. Comprehensive information about testosterone therapy, health, blood tests, and side effects for FTM transsexuals and transgender people 04. D. When hematocrit is too high, your cardiovascular system will suffer hemoglobin and hematocrit) or polycythemia (high RBCs, hemoglobin and hematocrit) High hemoglobin with a high RBC count and high hematocrit …. 11. 2006 · Anemia is a common complication of chronic kidney disease. 07. Zestful Thedrick transmuted his flexibility contemplates disadvantageously? 2015 · Dr. Three Parts: can you take ibuprofen and voltaren gel together Modifying Your Diet Modifying Your Lifestyle Recognizing a High Hematocrit Level. Check your blood testosterone level and. Webbiest long tradition and heels Garrett ordered his ...

Some Polycythemia Vera patients exhibit elevated haematocrit levels despite phlebotomy and/or cytoreductive therapy. Inability to achieve and consistently maintain haematocrit |45% can have serious consequences.

Brain tissue lactate, pyruvate, and adenosine triphosphate (ATP) were measured 60 min after bilateral carotid ligation in spontaneously hypertensive rats, of which hematocrit (HCT) was varied by exchanging with isovolemic homologous red cells, plasma or whole blood. Supratentorial lactate of the ischemic brain was increased more in high HCT (greater than or equal to 50%) and less in low HCT (30-39%) compared with normal HCT (40-49%). In very low HCT (less than 30%), however, lactate was increased to further extent compared with any other group of HCT (ANOVA p less than 0.0001). Lactate/pyruvate (L/P) ratio of the ischemic brain showed similar changes, namely U-shaped correlation to HCT. In contrast, supratentorial ATP was decreased more markedly in very low HCT, followed by high and normal HCT, and minimally decreased in low HCT, demonstrating an inverse U-shaped relationship to HCT. Mean arterial pressure and arterial acid-base parameters in ischemic animals did not differ among HCT groups. ...

In patients with hematocrit of 60% or above the A blood viscosity is increased, and the tissue oxygenation is compromised. There is an increased incidence of cardiovascular complications. Immediate phlebotomy is often done, but if the red cell volume is not increased and the plasma volume and total blood volume are decreased, phlebotomy may be harmful. Twenty-five patients with hematocrits of 60% or above have been studied. Patients with clinical or laboratory evidence of dehydration are not included. Red cell volume was determined by chromium-51 and plasma volume by iodine-131 human serum. The expected red cell volume and plasma volume ...

In May 2019 we informed you that due to a change in the production method of washed red cells from an automated system to a manual system the mean haematocrit (0.68) of the washed red cell component was currently higher than that of standard Red Cells in Additive Solution (0.58) although both are compliant with specification.. We have been undertaking work to reduce the mean haematocrit of Washed Red Cells and bring it more in to line with a standard Red Cell in Additive Solution component. This work has now been completed and may have clinical implications, for example if washed red cell units are used for automated red cell exchanges.. Summary of the component quality monitoring data for the reduced Hct component:. ...

TY - GEN. T1 - Investigating the role of haematocrit in foetal circulation. T2 - a multi-compartment lumped parameter model. AU - Marinou, L.S.. AU - Vavourakis, V.. AU - Kazakidi, A.. PY - 2019/9/5. Y1 - 2019/9/5. N2 - Foetal circulation is a complex system that differs from the corresponding neonatal and adult system. Current understanding of the foetal haemodynamics is limited1, while the role of haematocrit at different gestational ages has not yet been investigated extensively. Computational models can aid elucidate circulation haemodynamics2. To this end, this contribution proposes a multi-compartment lumped parameter model of the foetal circulatory system to investigate the effect of haematocrit variations on the systemic arterial flow. AB - Foetal circulation is a complex system that differs from the corresponding neonatal and adult system. Current understanding of the foetal haemodynamics is limited1, while the role of haematocrit at different gestational ages has not yet been ...

Tilles AW, Eckstein EC. The near-wall excess of platelet-sized particles in blood flow: its dependence on hematocrit and wall shear rate. Microvasc Res. 1987 Mar; 33(2):211-23 ...

Posted January 10th, 2012.. Novas new StatStrip™ Glucose Monitor has received clearance from the U.S. Food and Drug Administration for use in neonatal testing. Severe hematocrit abnormalities are routinely found in neonates. Other glucose monitors may report an error if the hematocrit value is abnormal, StatStrip is the only glucose monitor that measures hematocrit on the strip, automatically correcting glucose values for abnormal hematocrit values. In addition, its small 1.2 microliter sample volume is attractive for the NICU environment where blood conservation is essential.. Introduced in May 2006, StatStrip is rapidly becoming the gold standard in hospital glucose testing. Incorporating a patented new Multi-Well™ strip technology, StatStrip elevates bedside glucose monitoring to a level of speed, accuracy, quality, and patient safety on a par with central laboratory testing. In addition to hematocrit, StatStrip measures and corrects interferences from acetaminophen (Tylenol), uric acid, ...

China Sh120 Lab High Speed Microhematocrit Centrifuge with The Best Price, Find details about China Micro Hematocrit Centrifuge, Centrifuge 12000rpm from Sh120 Lab High Speed Microhematocrit Centrifuge with The Best Price - Wincom Company Ltd.

Anemia is a condition in which there is a decrease in circulating hemoglobin, the chemical that combines with oxygen and carries it to cells. Since red blood cells contain hemoglobin, the severity of anemia is usually gauged by the hematocrit (Hct), which is the percentage of red cells in a volume of blood. In women, a normal hematocrit (at sea level) is about 38-44% and in men about 42-48%. Physical exertion requires increased blood flow for oxygenation of both the heart muscle and the skeletal muscles. A person with a low hematocrit will need a faster heart and respiratory rate for a particular level of exertion so that, for example, a persons maximum heart rate could be reached doing light work. To the extent that those demands cannot be met because of decreased oxygen carriers (red cells), symptoms of fatigue, weakness, and increased respiratory effort with shortness of breath will limit exercise capacity. These symptoms are not different than those of a normal person who reaches his or her ...

PV is a myeloproliferative disorder resulting in an elevated absolute red blood cell mass because of uncontrolled red blood cell production. This is typically associated with an increase in WBC and PLT production. The increase in WBCs and PLTs is secondary to an abnormal clone of hematopoietic stem cells with increased sensitivity to different maturation growth factors. PV is overall rare, occurring in 0.6-1.6 persons per million population. The peak incidence of PV is 50-70 years of age. However, PV may occur in persons of all age groups, including young adults and children, albeit rarely [11].. The increased hematocrit of PV is the main determinant of blood viscosity. As the viscosity increases, cerebral blood flow decreases [6, 7]. PLT marginalization with increased contact to vessel walls occurs, along with local effect of a high hematocrit on vessel walls [6, 7]. This fulfils all three components of Virchows triad [12], and is consistent with the thought that many strokes in polycythemic ...

A recent routine medical exam revealed an increase of 8 points for my Hematocrit count (from 42 to 50) over the past year. I began Atkins Diet two weeks ago. Do you think the high fat/high protein aspects of this diet would/could cause a temporary increase in the hematocrit count? I feel fine and the exam revealed no other abnormalities. My doctor has order sonograms of my liver, spleen and kidneys. I know I dont drink enough water daily--would this be a contributing factor?. Reply Follow This Thread Stop Following This Thread Flag this Discussion ...

TY - JOUR. T1 - Hemoglobin and hematocrit values after saline infusion and tourniquet.. AU - Kuipers, H.. AU - Brouwer, T.. AU - Dubravcic Simunjak, S.. AU - Moran, J.. AU - Mitchel, D.. AU - Shobe, J.. AU - Sakai, H.. AU - Stray Gundersen, J.. AU - Vanhoutvin, S.A.L.W.. PY - 2005/1/1. Y1 - 2005/1/1. N2 - PG - 405-8 AB - This study attempted to contribute to standardization of blood testing in sport, and to investigate the effect of artificial dilution with saline. In 10 healthy, physically active males and 3 healthy physically active females hemoglobin (Hb), hematocrit (Ht), and % reticulocytes (%retics) were measured at different time points to look for possible fluctuations during day time, while the subjects had regular coffee breaks and lunch. In 7 of the subjects in a separate experiment 500 ml of saline were infused around 8 am and Hb, Ht, and %retics were measured before and every hour thereafter until 7 hours after infusion. In addition Ht was measured on a hematological analyzer as ...

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An hematocrit of 21-25% is supposed to perform the best organ protection during cardiopulmonary bypass for cardiac surgery.. The investigators want to establish the best timing for a transfusion (in patients with a predicted low hematocrit during cardiopulmonary bypass) and the efficacy of preprocedural hemodilution (in patients with a predicted high hematocrit during cardiopulmonary bypass) in patients undergoing cardiac surgery. ...

Children with sickle cell disease suffer impairment of cognitive function (1-3, 8-18). Although some studies report little or no cognitive impairment among patients with no history of clinical stroke (9,16,18), a general consensus exists that patients with clinical stroke do show cognitive impairment (1,8,13,15). We herein confirm that patients with silent infarct have cognitive impairment, compared with patients with normal MR imaging findings (Tables 2 and 5). However, we observed that patients who have completely normal MR imaging findings can still show significant cognitive impairment with respect to normative data (Tables 2 and 5), suggesting that MR imaging is not sensitive to some types of damage that can produce cognitive impairment. The degree of impairment is greater in children with low hematocrit (Table 3), and hematocrit alone is able to explain approximately 23% of the variance in full-scale intelligence quotient (Table 4). Furthermore, abnormal MR imaging and low hematocrit are ...

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Hello,The fact that you are an athelete needs attention since you do not seem to have symptoms of iron deficiency anaemia like fatigueablity or breathlessness.Of course you have evidence of anaemia in your blood tests.There is what is known of pseudo-anaemia of sports in which increase of plasma volume leads to dilution and slightly changed iron values.Also real anaemia also could occur due to loss of iron in training.While you must indeed get the invesigations recommeded these are also possible causes in an athelete.Best wishes ...

T. Komatsu, V. Kumar, V. Sanchala, K. Shibutani; SYSTEMIC VASCULAR RESISTANCE NEEDS CORRECTION FOR HEMATOCRIT VALUES. Anesthesiology 1982; 57:A124 doi: https://doi.org/10.1097/00000542-198209001-00124. Download citation file:. ...

I have thought for some time and continue to believe that I have Lymes Disease. This is do to the fact that when all the symptoms started, well maybe a month or so later when I noticed it, I had a weird pinkish tan, irregularly shaped oval mark on my back. It was gone less than a month later. It did not have a bullseye but Ive heard that doesnt matter. This was back in 2002, but I was never tested for Lymes disease until about two weeks ago. I had a Lyme Titer done, which came back negative. I do not know what type of Titer was done, if they did the old ELISA test or the ELISA6 test and I assume they did not do the western blot. Additionally, I have heard that other tick borne illnesses can cause similar symptoms (babesiosis, erlichiosis). I should add that I lived in Maryland until about a year ago and individuals I knew, specifically the neighbor across the street, had contracted Lymes Disease there. I had heard that the IGeneX is the best lab to use to have your blood or other fluids tested ...

Does Initial Hematocrit Predict Shock?. Everything you know is WRONG!. The classic textbook teaching is that trauma patients bleed whole blood. And that if you measure the hematocrit (or hemoglobin) on arrival, it will approximate their baseline value because not enough time has passed for equilibration and hemodilution. As Ive said before, youve got to be willing to question dogma!. The trauma group at Ryder in Miami took a good look at this assumption. They drew initial labs on all patients requiring emergency surgery within 4 hours of presentation to the trauma center. They also estimated blood loss in the resuscitation room and OR and compared it to the initial hematocrit. They also compared the hematocrit to the amount of crystalloid and blood transfused in those areas.. Patients with lower initial hematocrits had significantly higher blood loss and fluid and blood replacement during the initial treatment period. Some of this effect may be due to the fact that blood loss was ...

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AUTHORS: Kim, Won Ho MD, PhD et al. Anesthesia & Analgesia: May, 2017. BACKGROUND: Although point-of-care (POC) analyzers are commonly used during liver transplantation (LT), the accuracy of hematocrit measurement using a POC analyzer has not been evaluated. In this retrospective observational study, we aimed to evaluate the accuracy of hematocrit measurement using a POC analyzer and identify potential contributors to the measurement error and their influence on mistransfusion during LT.. METHODS: We retrospectively collected 6461 pairs of simultaneous intraoperative hematocrit measurements using POC analyzers and laboratory devices during LTs in 901 patients. The agreement of hematocrit measurements was assessed using Bland-Altman analysis for repeated measurements, while the incidence and magnitude of hematocrit measurement error were compared among 16 different laboratory abnormality categories. A generalized estimating equation analysis was performed to identify potential contributors to ...

Anemia is a common complication of end-stage renal disease (ESRD). Anemia occurs when there is a shortage of red blood cells or when the red blood cells are not correctly formed. In dialysis units, anemia is usually measured by the hematocrit blood test, which reports the percentage of the blood that is comprised of red blood cells. Normally, a hematocrit is from 37% to 47% for women and from 42% to 52% for men. Without interventions, a dialysis patients hematocrit usually stabilizes between 20-25%. At this level, most patients tire easily and feel drained of energy. Several statistical analyses have shown that dialysis patients have signficantly more complications, hospitalizations, and a higher mortality rate when their hematocrit is below 30% (approximately).. Dialysis patients experience anemia (low hematocrit) primarily because their kidneys no longer produce adequate amounts of erythropoietin (EPO). EPO is the principal factor that stimulates red blood cell production in the bone marrow. ...

Objective Hct in narrow vessels is reduced due to concentration of fast?flowing RBCs in the center, and of slower flowing plasma along the wall of the vessel, which in combination with plasma skimming at bifurcations leads to the striking heterogeneity of local Hct in branching capillary networks known as the network Fåhræus effect. We analyzed the influence of feeding Hct and perfusion pressure on the Fåhræus effect in an AMVN. Methods RBC suspensions in plasma with Hcts between 20% and 70% were perfused at pressures of 5?60 cm H2O through the AMVN. A microscope and high?speed camera were used to measure RBC velocity and Hct in microchannels of height of 5 ?m and widths of 5?19 ?m. Results Channel Hcts were reduced compared with Hctfeeding in 5 and 7 ?m microchannels, but not in larger microchannels. The magnitude of Hct reduction increased with decreasing Hctfeeding and decreasing ?P (flow velocity), showing an about sevenfold higher effect for 40% Hctfeeding and low pressure/flow velocity ...

Blood has two components: a watery fluid called plasma and the blood cells it transports. The hematocrit measures the fraction of the blood that is solely blood cells, and a healthy young mans is usually about 40 to 45 percent. I had figured that Mr. Chens hematocrit was low because he suffered from chronic anemia, a condition common among many recent immigrants from China. But when a patient is suffering from DKA and dehydration, the hematocrit (or blood cell count) should increase because the other portion of the blood--the plasma, which contains water--has decreased. So Mr. Chens real number of blood cells was probably far below what the already low hematocrit suggested. If he wasnt chronically anemic, then he had recently lost at least one-third of his blood cells. But how? And where ...

These results demonstrate that splenectomy is able to blunt the decline in MAP, the increase in hematocrit, and the reduction in plasma volume that is observed in intact animals infused with a low dose of LPS. It is important to emphasize that the increase in hematocrit observed in the intact animals results from the reduction in plasma volume (Fig. 3) not from splenic contraction and discharge of high hematocrit blood into the circulation. The rat spleen neither is contractile nor does it have storage capacity (32). Moreover, we have previously demonstrated that within the intrasplenic circulation there appears to be a mechanism enabling the efflux of iso-oncotic fluid from the blood into the lymphatic system (24). We propose therefore that during endotoxemia this fluid efflux is exaggerated, resulting in hemoconcentration and hypotension. The second experiment (Study B) supports this suggestion. Despite the initial fall in blood pressure caused by LPS, splenic arterial flow was maintained due ...

Resistance to blood flow through peripheral vascular beds strongly influences cardiovascular function and transport to tissue. For a given vascular architecture, flow resistance is determined by the rheological behavior of blood flowing through microvessels. A new approach for calculating the contribution of blood rheology to microvascular flow resistance is presented. Morphology (diameter and length), flow velocity, hematocrit, and topological position were determined for all vessel segments (up to 913) of terminal microcirculatory networks in the rat mesentery by intravital microscopy. Flow velocity and hematocrit were also predicted from mathematical flow simulations, in which the assumed dependence of flow resistance on diameter, hematocrit, and shear rate was optimized to minimize the deviation between measured and predicted values. For microvessels with diameters below approximately 40 microns, the resulting flow resistances are markedly higher and show a stronger dependence on hematocrit ...

Capillary Tube Microhematocrit found in: Capillary Tubes 1.1mm X75 mm Color Code Red, Plastic Capillary Tube, Glass Micro-Hematocrit Capillary Tubes, Micro..

Dr. Sharma and colleagues raise the question of a U-shaped relationship between hematocrit and all-cause mortality. We explored the possibility of a nonlinear relationship between hematocrit and survival time by including a quadratic hematocrit term in the Cox regression (1). The term was not significant, which allowed us to rule out a simple U relationship. We did not present analyses of all-cause mortality itself because follow-up times were quite variable and much of the data was censored. However, as an example of these results, in our data those male patients with hematocrit from 40% to 49% (n = 4,235) had 22% mortality, whereas those male patients with hematocrit of 50 or higher (n = 344) had a mortality of 23%, not a statistically significant difference (p = 0.47). We concluded that a nonlinear model did not fit the data any better than did a linear model.. Sharma and colleagues also question our subdivision of the population into hematocrit values ,35, 35 to 39, and ≥40%. The division ...

What is the normal hematocrit for pregnancy? Answered by Dr. Gurmukh Singh: Higher than 36: See this site for more information. http://www.nlm.nih...

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Haematocrit meanings in Urdu is Haematocrit in Urdu. More meanings of haematocrit, its definitions, example sentences, related words, idioms and quotations.

Anemia: Decrease in the oxygen-carrying capacity of the blood; indicated by a low hematocrit (Hct) and hemoglobin (Hb) concentration.. Anomaly: Deviation from what is regarded as normal; congenital malformation; birth defect. Apoptosis: a form of programmed cell death where cells are eliminated without releasing potential harmful compounds into their surroundings. Apoptosis differs from necrosis, a form of cell death often accompanied by the release of toxins into the environment and subsequent inflammation. B Cells: Type of lymphocyte involved in the production of antibodies.. Basophil: Type of white blood cell that contains and releases histamine from intracellular granules; a type of granulocyte involved in allergic reactions; normal value: 0.5-2% or 25-100 per microliter.. Bone Marrow: Soft tissue within the bones where blood cells are manufactured.. Bone Marrow Aspiration: Test in which a sample of bone marrow cells is removed from the bone marrow with a needle and examined under a ...

Whats your hematocrit level and whats your dose. I assume that were all giving blood regularly. Im @ .75 weekly, hematocrit was 48 five weeks ago...

Low hematocrit. My oxygen transport system isnt so great. Ill get my blood work done in the next couple of weeks and maybe things have improved a bit, but my crit has been running around 38-39. Low normal for a man is 41 so Im not too far off - the crit threshold for getting a red blood cell transfusion is 24. I dont normally notice this when Im walking around but as soon as I start running or biking (which for me is about 25 days/month), I notice it. My personal 10k best time is 38:42 and Im now running around 70 minutes at altitude. I ran the 38:42 time at sea level 25 years ago so undoubtedly some of the slowdown is just age and altitude. So these days Id be pretty happy running a 10k in around 50 minutes. But 70 minutes? Ive gotten 20 MINUTES SLOWER than a typical pace for a recreational 55 year old runner. I mean, WTF? So this part of my health really, really frustrates me. I spend a lot of time saying to myself youre healthy, youre doing fine, quick whining, enjoy life. But ...

Low hematocrit. My oxygen transport system isnt so great. Ill get my blood work done in the next couple of weeks and maybe things have improved a bit, but my crit has been running around 38-39. Low normal for a man is 41 so Im not too far off - the crit threshold for getting a red blood cell transfusion is 24. I dont normally notice this when Im walking around but as soon as I start running or biking (which for me is about 25 days/month), I notice it. My personal 10k best time is 38:42 and Im now running around 70 minutes at altitude. I ran the 38:42 time at sea level 25 years ago so undoubtedly some of the slowdown is just age and altitude. So these days Id be pretty happy running a 10k in around 50 minutes. But 70 minutes? Ive gotten 20 MINUTES SLOWER than a typical pace for a recreational 55 year old runner. I mean, WTF? So this part of my health really, really frustrates me. I spend a lot of time saying to myself youre healthy, youre doing fine, quick whining, enjoy life. But ...

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