Results 211 to 220 of about 192,046 (241)
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Clinical Hemorheology and Microcirculation, 2017
The hematocrit (Hct) determines the oxygen carrying capacity of blood, but also increases blood viscosity and thus flow resistance. From this dual role the concept of an optimum Hct for tissue oxygenation has been derived. Viscometric studies using the ratio Hct/blood viscosity at high shear rate showed an optimum Hct of 50-60% for red blood cell (RBC)
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The hematocrit (Hct) determines the oxygen carrying capacity of blood, but also increases blood viscosity and thus flow resistance. From this dual role the concept of an optimum Hct for tissue oxygenation has been derived. Viscometric studies using the ratio Hct/blood viscosity at high shear rate showed an optimum Hct of 50-60% for red blood cell (RBC)
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Acoustofluidic hematocrit determination
Analytica Chimica Acta, 2018Hematocrit (HCT) measurements of blood from patients, blood donors and athletes are routinely performed on a daily basis. These measurements are often performed in centralized hospital labs by whole blood analyzers, which leads to long time-to-result.
Klara Petersson +6 more
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The Hematocrit of Capillary Blood
New England Journal of Medicine, 1955THE measurement of the packed red-cell volume (or hematocrit) of the venous blood has long been recognized as a useful aid in the study of blood in a large number of clinical conditions.
Joseph J. McGovern +2 more
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Hematocrit measurement by dielectric spectroscopy
Proceedings of the Second Joint 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society] [Engineering in Medicine and Biology, 2002Based on permittivity changes, a new method to measure hematocrit (HCT) in extracorporeal blood systems is presented. Human blood samples were tested at different HCT levels pairing the values of permittivity change, obtained by means of a commercial impedance analyzer, with traditional centrifugation measurements.
Carmelo Jose Felice +4 more
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MODE OF DELIVERY AND NEONATAL HEMATOCRIT [PDF]
American Journal of Perinatology, 2000 The objective of this paper is to test the hypothesis that the 2-h hematocrit (HCT) is lower in infants born by cesarean section (CS) than in infants born vaginally and that the postnatal rise of HCT is lower in infants born by CS than in infants delivered vaginally.
Shaul Dollberg +3 more
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Optimal hematocrit for hemodialysis
Current Opinion in Nephrology and Hypertension, 1997Considerable controversy continues over the optimal hematocrit target for dialysis patients being treated with recombinant erythropoietin. Recent short-term studies have demonstrated a significant improvement in brain function when hematocrit is 42% compared with when it is 31%.
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An Electrical Method to Determine Hematocrits
IRE Transactions on Medical Electronics, 1960It has been determined that the electrical conductance of whole blood is a very accurate index of its hematocrit. The new instrument described here fills a need for a quick, accurate portable hematocrit meter. This meter can be used at the patient's side for an instantaneous determination, and wherever a portable instrument is required.
Robert H. Okada, Herman P. Schwan
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Influence of Lipid Emulsion for the Hematocrit Value Measured With Continuous Hematocrit Monitor
ASAIO Journal, 2007Continuous monitoring of hematocrit with a CRIT-LINE monitor (CLM) is used to prevent excess ultrafiltration during hemodialysis and continuous renal replacement therapy. The presence of substances affecting the scattering and absorption rates of multiple wavelengths of near infrared rays of CLM in the blood may affect the measured values with CLM.
Masahiro Kuroda +9 more
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Elevated hematocrit in patients with schizophrenia
Biological Psychiatry, 1987A number of investigators have reported altered hematocrit in psychiatric disorders (Benitone and Kling 1970; Dintenfass and Zador 1976, 1977; Schubert and Rohira 198 1). Benitone and Kling (1970) reported elevated hematocrit in 43 of 226 male patients in a psychiatric hospital. Only 7% of the normal controls showed similar hematocrit changes.
William H. Wilson, Roy J. Mathew
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The Effect of Hematocrit on Peritoneal Transport
American Journal of Kidney Diseases, 1991Eight stable patients, from our institution, on continuous ambulatory peritoneal dialysis (CAPD) were entered into a multicenter, randomized, double-blind, placebo-controlled study with erythropoietin (EP]. To assess the effect of hematocrit on peritoneal solute transport, we performed peritoneal equilibration tests (PET) on each patient on a quarterly
Catherine Firanek +2 more
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