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Cardiovascular System

Blood

Do males or females have a higher hematocrit?

Blood Test Purpose Normal Range
Hematocrit (HCT) % blood cells in whole blood 37–54%
Hemoglobin concentration Hemoglobin concentration 12–18g/dl*
Red blood cell count Number of red blood cells/microliter whole blood 4.2–6.3 million/microliter
White blood cell count Determines total number of circulating white blood cells 600–9,000
*g/dl = grams/deciliter

Males have a higher hematocrit, since they have a greater capacity to carry oxygen in order to supply the greater muscle mass of their bodies.



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