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FAQs 1. What is a 2-step TB skin test (TST)? Tuberculin
Both step 1 and step 2 of the 2 step TB skin test must be completed within 28 days. A second TST is performed: another dose of PPD antigen is applied under
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Fact Sheet - Tuberculin Skin Testing | TB
The TST is performed by injecting 0.1 ml of tuberculin purified protein derivative (PPD) into the inner surface of the forearm. The injection should be made
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NHANES Tuberculosis Skin Test Procedures Manual
tuberculin skin test (PPD) preferably in the left forearm if available. After The TB skin test reading was not completed within the 76 hour time limit.
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