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Showing 1 to 20 of 111 for “"Hematocrit"”.
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Hematocrit, hematocrit Regulation and its effect on oxygen consumption in the late stage chicken embryo (Gallus domesticus).
Hematocrit and hematocrit regulation have the potential to affect developing embryos. To examine the ability of chicken embryos at day 15 to regulate hematocrit, they were subjected to either repeated saline injections (5% of total blood volume) or repeated blood removal (5% of total blood volume). …
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Changes in microvascular hematocrit during post-occlusive reactive hyperemia: descriptions and mechanisms
… was to describe the changes in microvascular hematocrit, as total[hemoglobin+myoglobin] (T[Hb+Mb] measured with near-infrared spectroscopy (NIRS), during post-occlusive reactive hyperemia (PORH). Mechanisms of reactive hyperemia within skeletal muscle were also explored. The investigation …
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The rheology of blood-effect of hematocrit and temperature on yield value
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1962.
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Plasma Volume Hematocrit (PVH): “Big Data” Applied to Physiology Enabled by a New Algorithm
… These equations are used to calculate the Hematocrit which is defined as the volume fraction of red blood cells in the total volume of blood. We believe that monitoring changes in the Hematocrit with sufficient sensitivity could give information about many physiological parameters including …
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Mathematical Evaluation of Steady, Laminar Flow by the use of Continuous-Wave (CW) Doppler and Pitot Tube System
… on the spectrum. The hypothesis was that both hematocrit and pressure head influence the amplitude of the spectrum. Experiments were designed to: a) evaluate their roles on amplitude; b) derive the associated functional relationship.</p> <p>Preliminary experiments revealed that: a) the accuracy …
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Effects of exercise and protein nutriture on the iron status of rats at selected intervals of gestation
… thereafter, throughout the study. Hemoglobin, hematocrit, liver iron concentration and spleen iron concentration were measured at day 0, 3, 6, 9, 12, 15, 18, and 21 of gestation. Mean hemoglobin, hematocrit and liver iron concentration values were lower at day 21 than at day 0 of gestation. …
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Effects of size, age and photoperiod on hypoosmoregulation in brook trout, Salvelinus fontinalis
… [Cl-], [K+], [Mg2+], thyroxine concentration, hematocrit, and gill Na+,K+-ATPase activity of brook trout in freshwater. Significant diel cycles were found in plasma osmolarity, (Na+] and thyroxine concentration. Significant size and/or age related changes occurred for plasma osmolarity, [Na+], …
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Iron and its Relationship to Neural Tube Defects among Offspring of Texas Border County Women
… TX by the Texas Department of Health found hematocrit values among women giving birth to babies with anencephaly and any NTDs to be significantly lower (p< 0.01) than among control-women. Those results led to a much larger case-control study designed to ascertain risk factors for NTDs. This …
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An empirical constitutive equation for anti-coagulated human blood
… from anticoagulated blood samples of known hematocrit levels and chemical compositions. A multiple regression technique with apparent viscosity as the dependent variable was used to determine the consistency index and the non-Newtonian index. A model including only the shear rate as the …
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Rheological aspects of sickle cell anemia and related hemoglobinopathies
… to oxygen tension, the concept of optimum hematocrit was employed. The optimum hematocrit is defined as the hematocrit at which the erythrocyte flow rate is the greatest. It therefore represents the optimum oxygen carrying capacity of blood. Using a Weissenberg Rheogoniometer with …
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The effect of blood chemistry on the rheological properties of the fluid
… on whole blood samples within a narrow range of hematocrit to investigate further the effect of the various plasma constituents on whole blood viscosity. Viscosity measurements were made on one hundred anticoagulated blood samples of known hematocrit and chemical composition. The constitutive …
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Changes in indicators of nutritional status during hospitalization
… serum albumin, total lymphocyte count (TLC), and hematocrit on admission and near discharge. Serum albumin and hematocrit were the only indicators that changed significantly during hospitalization, with both decreasing from admission to discharge. Considering the four indicators together, changes …
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Bedside Washing of Stored Red Blood Cells: A Simple Apparatus Based on Microscale Sedimentation in Normal Gravity
… concentrate washed pRBC units to a therapeutic hematocrit of 65%, but it optimally concentrated to a physiological hematocrit of 41%. Concentration was found to be dependent on initial morphology of the unit. In terms of improved quality, the gravity-driven washing system performed comparably …
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Changes in Body Condition from Prepartum to Postpartum on Health and Reproduction in Dairy Cattle
… success by measuring body condition score, hematocrit, total white blood cell (WBC) differential, haptoglobin (Hp) concentrations, milk yield and monitoring health status. The body condition score changed significantly with time with the greatest unit loss being in the over-conditioned …
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The effects of zinc intake and exercise on iron status of pregnant Sprague-Dawley rats
… weights were unaffected. Hemoglobin and hematocrit decreased throughout gestation in the adequate group, and until day 18 in the marginal group, increasing significantly by day 21. Serum iron, TIBC, and maternal liver iron decreased throughout pregnancy although liver and spleen iron …
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Control of bleeding in transversical prostatectomy at the University Teaching Hospital
… was a prospective study.Blood for hemoglobin and hematocrit was collected both pre operatively and post operatively. The difference between pre operative haemoglobin/hematocrit and postoperative haemoglobin/hematocrit was calculated. The minimum and maximum haemoglobin recruited for study were …
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The Influence of Environmental Conditions and Co-Occurring Parasites on Blood Physiology in Eastern Hellbenders (<i>Cryptobranchus alleganiensis</i>)
… imperiled amphibian species. Here, I measured hematocrit, hemoglobin, relative proportions of polychromatic red blood cells, and white blood cell differentials in a wild population of male Eastern Hellbender salamanders (<i>Cryptobranchus alleganiensis</i>) which remain with their nest for up …
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A Rapid Concentration and Identification Technique for Human Malaria Infections Using a Mouse Model
… a standard (75x1.2) heparinized capillary micro-hematocrit tube. The tube was sealed at the bottom and centrifuged for 5 minutes at 7,000 revolutions per minute in a hematocrit centrifuge. Packed cell volume is determined concentration point, the hematocrit tube is broken, and the blood cells …
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