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You may have swelling where the tuberculin was injected.
The health care worker will measure this swelling and tell you if your reaction to the test is positive or negative.
It is important that you take all the pills as prescribed.
TB blood tests use a blood sample to find out if you are infected with TB bacteria.
Because the TB bacteria may be found somewhere other than your lungs, your doctor or nurse may check your urine, take tissue samples, or do other tests.