Medical Information on the Internet: Lab Tests

For authoritative, accurate, and current lab test information, see these websites:

  • Lab Tests Online: Maintained by the American Association for Clinical Chemistry. Search for lab tests by disease or lab test name. Normal ranges for tests are not provided.
  • MedlinePlus Medical Encyclopedia: Information from the National Library of Medicine and the National Institutes of Health. Look up a lab test to see normal ranges.
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