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FAQ: Lab and Diagnostic Tests


Question: Where can I find information about lab and diagnostic tests?


Answer: There are a number of resources for this information. We suggest the following:

  • Ask your health care provider about specific lab tests, x-rays, reagents, home test kits, or other diagnostic tests. Ask how the tests are performed, what the results mean, and what the normal range is for the test.
  • Look at the MedlinePlus® health topic page for laboratory tests
  • Select from a list of MedlinePlus health topic pages on Diagnostic Tests for information
  • Find medical test information in the A.D.A.M. Medical Encyclopedia
  • Search MEDLINE/PubMed, the NLM® database for biomedical literature, for journal articles about testing for various diseases or conditions
  • Go to Lab Tests Online, developed by the American Association for Clinical Chemistry
  • Contact one of these US Food & Drug Administration (FDA) Centers: Center for Biologics Evaluation and Research (CBER) OR
    Center for Devices and Radiological Health (CDRH)
  • Contact your local pharmacy or grocery store health-beauty aid section for home test kits. If you have a test kit and have questions about it, contact the company that makes the test kit.

NLM is not responsible for the availability or content of external sites. NLM does not endorse, warrant, or guarantee the products, services, or information described or offered at these sites.


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