Mantoux tuberculin skin test


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Mantoux tuberculin skin test


Photograph of a person administering the Mantoux tuberculin skin test

Source: U.S. Centers for Disease Control and Prevention (CDC). http://www.cdc.gov

During a Mantoux (PPD) tuberculin skin test, TB antigens are injected under the top layer of skin. A positive reaction, usually a firm red bump where the needle went into your skin, means you were exposed to TB bacteria. This test does not reveal whether you have active TB, which can be spread to others. A trained professional must interpret your test.

Credits


Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Alfred A. Lardizabal, MD - Pulmonology and Critical Care Medicine/Tuberculosis
Last Updated May 18, 2007

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