Karl Tornyos, M.D., F.A.C.P.
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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
Tornyos K. Diagnosis and Treatment of Patients with High Hematocrit.. Ann Intern Med. ;70:1086–1087. doi: 10.7326/0003-4819-70-5-1086_3
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Published: Ann Intern Med. 1969;70(5):1086-1087.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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