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What are normal levels for a CBC blood test?

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Quick Answer

The normal red blood cell counts are 4.32 to 5.72 trillion cells per liter for males and 3.90 to 5.03 trillion cells per liter for women, explains Mayo Clinic. Normal levels for a complete blood count, or CBC, test typically vary by gender and type of test.

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Full Answer

The normal hemoglobin count for a CBC test is 13.5 to 17.5 grams per deciliter for males and 12.0 to 15.5 grams per deciliter for females, notes Mayo Clinic. Normal platelet counts are 150 to 450 billion per liter for both sexes. The normal hematocrit count for a CBC test is 38.8 to 50.0 percent for males and 34.9 to 44.5 percent for females. The normal white blood cell count is 3.5 to 10.5 billion cells per liter for both sexes.

While a CBC is not a conclusive diagnostic tool, the results can provide insights into the body's condition, according to Mayo Clinic. For instance, hemoglobin, hematocrit and red blood cell results below the normal range may be a sign of anemia; results above the normal range may be an indicator of heart disease. Nonstandard platelet counts may be an indicator of disease or the side effect of certain medications, while elevated white blood cell counts may be a sign of bone marrow disorders or a dysfunctional immune system. White blood cell counts lower than normal may be a sign of cancer, bone marrow disease or autoimmune disorders.

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