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Best Answer: ilovemikedirnt, The TB skin test is also referred to as Purified Protein Derivative; PPD; Mantoux; Latent tuberculosis infection test. A healthcare worker will interpret your test results by looking at the injection site on your forearm at 48 or 72 hours.
It also depends on the personâs risk of being infected with TB bacteria and the progression to TB disease if infected. 1  Positive skin test: This means the personâs body was infected with TB bacteria. 2  Additional tests are needed to determine if the person has latent TB infection or TB disease.ther tests, such as a chest x-ray and a sample of sputum, are needed to see whether the person has TB disease. Tuberculin skin test: The TB skin test (also called the Mantoux tuberculin skin test) is performed by injecting a small amount of fluid (called tuberculin) into the skin in the lower part of the arm.