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Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Blood volume

Introduction


Blood volume is the volume of blood (both red blood cells and plasma) in a person’s circulatory system. A typical adult male human has a blood volume of some five litres [2]. Blood volume is regulated by the kidneys.

Blood volume (BV) can be calculated given the hematocrit (HC; the fraction of blood that is red blood cells) and plasma volume (PV):

<math>BV = \frac{PV}{1-HC}</math>

Template:WikiDoc Sources

Editor-In-Chief: Template:WikiDoc Cardiology News C. Michael Gibson, M.S., M.D. [1]