PPD Skin Test
Alternate Names : Purified Protein Derivative Standard, TB Skin Test, Tuberculin Skin Test
DefinitionThe purified protein derivative (PPD) is an antigen used to aid in the diagnosis of tuberculosis infection. An infection with the bacteria that causes tuberculosis frequently leads to a sensitivity to these antigens.
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Why is the Test Performed?
The test is performed to evaluate infection with tuberculosis.
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