Mantoux test

The Mantoux test (also called the Mendel–Mantoux test, tuberculin sensitivity test, or PPD test) is a method used to screen for tuberculosis (TB) infection. It has largely replaced older skin testing techniques such as the tine and Heaf tests. The test involves injecting a small amount of purified protein derivative (PPD) tuberculin just under the skin of the forearm. If performed correctly, the injection creates a small, pale bump called a wheal. The test site is examined a few days later for swelling or hardening of the skin, an immune response that would be expected if the person had been exposed to tuberculosis. However, additional tests are usually required to confirm active infection.

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