What if I have a reaction to the skin test?
You may have a firm lump (induration) where the tuberculin was injected. The health care worker will measure the area of induration and tell you if your reaction to the test is significant. A significant reaction usually means that you have been infected by someone with active TB disease. If this happens, other tests will be ordered to see if you have active TB disease. The first follow-up test is usually a chest x-ray. If the chest x-ray shows signs of possible TB, you may also have a test of the phlegm you cough up (sputum culture). If you have active TB disease, you will need to take medicine to treat the disease.

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1. What is tuberculosis?
2. Who is at risk?
3. How do you get tested for TB?
4. Where can I get tested?
5. What if I have a reaction to the skin test?
6. What is the treatment for TB?