TB skin test
TB Skin Test
The TB skin test, also known as the Mantoux tuberculin skin test or PPD test, is a diagnostic tool used to detect tuberculosis (TB), an infectious disease caused by the bacterium Mycobacterium tuberculosis.
Pronunciation
TB skin test: /tiː biː skɪn tɛst/
Etymology
The term "TB" is an abbreviation for tuberculosis. The term "skin test" refers to the method of administration, which involves injecting a small amount of tuberculin into the skin. The test is named after Charles Mantoux, a French physician who developed the method in the early 20th century.
Description
The TB skin test involves injecting a small amount of tuberculin, a protein derivative of Mycobacterium tuberculosis, into the skin of the forearm. If a person has been infected with TB, their immune system will react to the tuberculin by causing a raised, hard bump or swelling at the site of the injection within 48 to 72 hours.
Related Terms
- Tuberculosis: An infectious disease caused by the bacterium Mycobacterium tuberculosis.
- Tuberculin: A protein derivative of Mycobacterium tuberculosis used in the TB skin test.
- Mantoux test: Another name for the TB skin test, named after French physician Charles Mantoux.
- PPD test: An abbreviation for "purified protein derivative" test, another name for the TB skin test.
See Also
- Chest X-ray: A diagnostic tool often used in conjunction with the TB skin test to confirm a diagnosis of tuberculosis.
- Interferon Gamma Release Assays: Blood tests that can also be used to detect tuberculosis infection.
External links
- Medical encyclopedia article on TB skin test
- Wikipedia's article - TB skin test
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