What Are Blood Levels?


Quick Answer

Blood levels are quantitative measures of the various components that constitute blood. A complete blood count, or CBC test, shows the different levels of red blood cells, white blood cells, platelets, hemoglobin, hematocrit and average corpuscular volume.

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What Are Blood Levels?
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Full Answer

Certain factors may affect normal ranges, including race, gender, age, food, alcohol and medicine intake, menstrual period and workout frequency, according to the National Heart, Lung and Blood Institute. Normal ranges include an RBC count of 5 to 6 million cells/mcL in men and 4 to 5 million cells/mcL in women; WBC count between 4,500 and 10,000 cells/mcL; platelet count of 140,000 to 450,000 cells/mcL; hemoglobin count of 14 to 17 g/dL in men and 12 to 15 g/dL in women; hematocrit of 41 to 50 percent in men and 36 to 44 percent in women and mean corpuscular volume of 80 to 95 femtoliter.

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