منابع مشابه
The body hematocrit/venous hematocrit ratio and the "splenic reservoir".
D URING measurements of total body red cell volume by the Cr51-technic in this laboratory, normal or elevated values were observed in several patients with moderate “anemia”, as judged by the hematocrit of peripheral venous blood. #{176} In each instance, marked to massive splenomegaly was present and increased localization of red cell radioactivity in the spleen was noted by body surface scann...
متن کاملHematocrit and hematocrit viscosity ratio during exercise in athletes: Even closer to predicted optimal values?
The hemorheological theory of optimal hematocrit suggests that the best value of hematocrit (hct) should be that which results in the highest value of the hematocrit/viscosity (h/η) ratio. Trained athletes compared to sedentary subjects have a lower hct, but a higher h/η, and endurance training reduces the discrepancy between the actual hct and the ⪡ideal⪢ hct that can be predicted with a theor...
متن کاملMyth or reality: hematocrit and hemoglobin differ in trauma.
BACKGROUND Estimating blood loss in trauma patients usually involves the determination of hematocrit (Ht) or hemoglobin (Hb). However, in trauma patients, a poorly substantiated habit exists to determine both Ht and Hb in assessing acute blood loss. This suggests that Ht and Hb provide different information. Moreover, a survey of the literature showed a significant association of the subject tr...
متن کاملThe body/venous hematocrit ratio: its constancy over a wide hematocrit range.
Most observers have found that when circulating red cell volume is deduced from measurement of plasma volume and venous hematocrit a higher value is obtained than when the red cell volume is measured directly. It is widely believed that this is because the proportion of red cells in the blood in large vessels is higher than that in the body as a whole and various correction factors have been pr...
متن کاملCerebrovascular response to decreased hematocrit: effect of cell-free hemoglobin, plasma viscosity, and CO2.
The effect of transfusing a nonextravasating, zero-link polymer of cell-free hemoglobin on pial arteriolar diameter, cerebral blood flow (CBF), and O2 transport (CBF x arterial O2 content) was compared with that of transfusing an albumin solution at equivalent reductions in hematocrit (approximately 19%) in anesthetized cats. The influence of viscosity was assessed by coinfusion of a high-visco...
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ژورنال
عنوان ژورنال: Journal of Pediatric Orthopaedics
سال: 2016
ISSN: 0271-6798
DOI: 10.1097/bpo.0000000000000409