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 infection, and 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 tuberculin just under the skin of the forearm, and 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 expected if the person has been exposed to tuberculosis, though additional tests are usually required to confirm active infection.