What Blood TestShow
Blood tests show whether the levels of different substances in your blood fall within a normal
range.
For many blood substances, the normal range is the range of levels seen in 95 percent of healthy
people in a certain group.
For many...
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What Blood TestShow
Blood tests show whether the levels of different substances in your blood fall within a normal
range.
For many blood substances, the normal range is the range of levels seen in 95 percent of healthy
people in a certain group.
For many tests, normal ranges vary depending on your age, gender, race,
and other factors.
Your blood test results may fall outside the normal range for many reasons.
Abnormal results
might be a sign of a disorder or disease.
Other factors—such as diet, menstrual cycle, physical
activity level, alcohol intake, and medicines (both prescription and over the counter)—also can
cause abnormal results.
Your doctor should discuss any unusual or abnormal
blood test results with you.
These results may or may not
suggest a health problem.
Many diseases and medical problems can t be diagnosed
with blood tests alone.
However, blood tests can help you
and your doctor learn more about your health.
Blood tests also can help find potential problems
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