How Do You Know If Your Blood Test Results Are Normal?


Quick Answer

To know if lab results are normal, it is best to ask the lab where the tests occur, as all labs have different ranges of what is normal or not, according to the American Cancer Society. A patient can also ask her health care provider to help her review and interpret her blood test results. The normal range of some results may depend on gender or age.

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Full Answer

Though all labs have different ranges, there are some universal ranges that can give a patient an idea of whether or not blood work is normal, states the American Cancer Society. When looking at the lab results, some labs list the letters H or L to indicate the values that are higher or lower than normal. The normal range for red blood cells, for instance, ranges from 4.2 to 6.1 x 1,000,000 cubic millimeters. Hematocrit, which is the percentage of red blood cells that make up the blood, has a normal range from 37 to 52 percent.

A complete blood count is a common type of blood test, and it measures the amount of red blood cells, white blood cells and platelets, explains the American Cancer Society. Another common blood test is a chemistry panel, which measures protein, fat, electrolytes, sugar and enzymes in the blood. There are also tests that focus on specific areas of the body. For example, a liver blood test measures how well the liver works depending on the results.

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