It is a skin test is a test that determines if you suffer from tuberculosis (TB).
1 The tuberculosis skin test is also known as the tuberculin test or PPD test. 2  The PPD test is used to determine if someone has developed an immune response to the bacterium that causes tuberculosis (TB). Understanding the PPD Skin Test and Tuberculosis. A purified protein derivative (PPD) skin test is a test that determines if you suffer from tuberculosis (TB). Tuberculosis is a serious infection, usually of the lungs, caused by the bacteria Mycobacterium tuberculosis. This bacteria spreads by breathing in the air exhaled by an infected person. Testing & Diagnosis. Tuberculosis (TB) is a disease that is spread through the air from one person to another. There are two kinds of tests that are used to determine if a person has been infected with TB bacteria: the tuberculin skin test and TB blood tests. 1 The PPD test is used to determine if someone has developed an immune response to the bacterium that causes tuberculosis (TB). 2  The standard recommended tuberculin test is the Mantoux test, which is administered by injecting a 0.1 mL volume containing 5 TU (tuberculin units) PPD into the top layers of skin of the forearm. A tuberculin skin test (also called a Mantoux tuberculin test) is done to see if you have ever been exposed to tuberculosis (TB). The test is done by putting a small amount of TB protein (antigens) under the top layer of skin on your inner forearm. The TB antigens used in a tuberculin skin test are called purified protein derivative (PPD). A measured amount of PPD in a shot is put under the top layer of skin on your forearm. This is a good test for finding a TB infection. TB Tuberculin Test. A tuberculosis skin test (also known as the tuberculin skin test or PPD skin test) is often used to identify if someone has been infected with TB. New tests, such as QuantiFERON®-TB Gold In-Tube Test, identify the infection through blood testing.
http://www.medicinenet.com/tuberculosis_skin_test_ppd_skin_test/article.htm http://www.healthline.com/health/ppd-skin-test http://www.cdc.gov/tb/topic/testing/default.htm http://www.medicinenet.com/tuberculosis_skin_test_ppd_skin_test/article.htm http://www.webmd.com/a-to-z-guides/tuberculin-skin-tests http://www.webmd.com/a-to-z-guides/tuberculin-skin-tests https://www.passporthealthusa.com/vaccinations/tuberculosis-tests/
what is ppd test