Hematocrit level

Hematocrit (Hct) level

A measure of red blood cells.
Mentioned in: Dialysis, Kidney
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
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Her temperature was 38[degrees]C, and blood tests showed leukopenia (leukocyte count 1,900 cells/gL [reference 4,000-10,000 cells/gL]), thrombocytopenia (platelet count 125 x 103/gL [reference 150-450 x 103/gL]), and a low hematocrit level (34.3% [reference 36%-44%]).
As seen in several studies that the hematocrit level slightly increase, in our study there were also slightly, but non-significant increase of hematocrit level were found.10-12 James et al.
For instance, a hematocrit level of 40% means that there are 40 milliliters of red blood cells in 100 milliliters of blood.
"Systemic effects of estimated glomerular filtration rate, hematocrit level, and blood pressure on CBF and alterations in regional CBF may reflect impaired brain function underlying neurocognitive symptoms in CKD," the authors write.
"Hematocrit Level and Associated Mortality in Hemodialysis Patients." Journal of the American Society of Nephrology 10 (3): 610-9.
Until referral to our department, no blood transfusion had been made and the patient's complete blood count showed a hemoglobin level of 14.4 g/dL and hematocrit level of 43.2%.
Cytoreductive therapy (hydroxyurea) with aspirin (81-100 mg/day) for vascular symptoms and phlebotomy (to maintain a hematocrit level of <45%) is recommended as initial treatment.
low hematocrit level, vasopressor presence, ascorbic acid, capillary blood specimen dilution.
The polycythaemias are usually classified as relative and absolute.1 Relative polycythaemia is a condition in which the patient characteristically has an elevation of the hematocrit level without an elevated red cell mass but it is due to contraction of the plasma volume, in contrast the absolute polycythaemias are accompanied by an actual increase in the red cell mass.1 Polycythaemias can also be classified according to the response of their erythroid progenitor cells to growth factors like erythropoietin or the circulating levels of it.1,2 Primary polycythaemias are characterized by increased sensitivity of the erythroid progenitors to regulatory growth factors, as a result of acquired somatic or inherited mutations expressed by progenitor cells.
There is a negligible decrease [0.44%] in the hematocrit level of the blood of the male rat, which was statistically not at all significant (p = 0.904).
Fortnightly, the hematocrit level was determined and the FAMACHA[c] method was applied to each animal to classify the animals as proposed, in order to relate the FAMACHA[c] with the hematocrit value in ovine females of different breeds supplied with two different levels of crude protein.
Dilutional anemia and hemodynamic changes can affect tissue oxygenation, and most studies state that a minimum hematocrit level of 22% is necessary for the on-pump technique.