Cardiovascular SystemBlood |
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.