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Tuberculosis Skin Test Picture

tb.jpg (10106 bytes)

Tuberculosis Skin Test

A Tuberculosis skin test looks for Tuberculosis infection. Tuberculosis proteins are injected under the surface of the skin. If a person is infected with Tuberculosis, a hard swelling (induration) will develop at the site of the injection in 48 to 72 hours. A health care professional must measure the size of the reaction and tell you if the test is positive.



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