The Mantoux Test is a diagnostic tool used to determine whether a person has been exposed to tuberculosis. However, there are many alternate terms for this commonly known test. These synonyms include the tuberculin skin test, intradermal TB test, PPD (purified protein derivative), and the Heaf test. These terms are interchangeable, but they all refer to the same diagnostic test. The Mantoux Test is performed by injecting a small amount of purified protein derivative under the skin on the forearm. The test helps medical professionals diagnose tuberculosis, a chronic infectious disease that affects the lungs. In conclusion, regardless of the name, the Mantoux Test is a vital tool in diagnosing tuberculosis.