Purified protein derivative standard; TB skin test; Tuberculin skin test; Mantoux test
There is a very small risk of severe redness and swelling of the arm in people who have had a previous positive PPD test and who have the test again. There also have been a few cases of this reaction in people who have not been tested before.
A positive skin test does not necessarily mean that a person has active TB. More tests must be done to check...Read more