Mantoux test positive?

Depends . . .: Positive mantoux tuberculin skin test (also known as PPD or purified protein derivative) is determined by diameter of induration, not erythema, as well as risk of infection. Chat w/your provider to discuss your next step as well as options. Check out http://www.Cdc.Gov/tb/publications/factsheets/testing/skintesting.Htm.

Work up needed: At the very least it may suggest that you have been exposed to tuberculosis. You should visit with your doctor to have questions asked about whether or not you have TB symptoms to suggest infection such as do you have a cough? Unexplained night sweats? Unexplained weight loss, fevers or chills and fatigue? You also need to have a chest x ray performed - since organism is usually inhaled.