PPD skin test

PPD skin test
Alternate Names : Purified protein derivative standard, TB skin test, Tuberculin skin test, Mantoux test
Definition ...

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The PPD skin test is done by injecting a small amount of protein (derived from Tuberculosis bacteria) under the skin of the forearm -- swelling and redness indicate a positive result.
The test result is determined 48 hours after injection.

anyone who is HIV-positive with a positive PPD skin test; isoniazid may be given even if the PPD results are negative if there is a risk of exposure to active tuberculosis
intravenous drug users, even if they are negative for HIV ...

Chest CT
Sputum culture
Complete blood count (CBC)
Genetic testing, including sweat test for cystic fibrosis
PPD skin test to check for a prior tuberculosis infection
Serum immunoglobulin electrophoresis ...

when appropriate, tests for HIV, histoplasmosis complement fixation (in endemic areas), streptozyme, and neutralizing antibodies for coxsackievirus, influenza virus, and echovirus. Anti-DNA and anti-RNA antibody tests may be useful. A PPD skin test ...

See also: Tuberculosis, X-Ray, Symptom, Fever, Surgery