how to do tb skin test

The date, time and site of the TB skin test is documented on the report form 1. The TB skin test, also known as the Mantoux tuberculin skin test, is the most common way doctors diagnose tuberculosis. Know how TB spreads. The two-step tuberculin skin test (TST) is used to detect individuals with past tuberculosis (TB) infection who now have diminished skin test reactivity. The tuberculosis bacteria are airborne, meaning they are put into the air when a person with TB disease in their lungs or throat coughs, sneezes, speaks, or sings. A TB skin test is the first method a doctor will use to try to determine if a person has TB. You will be given an injection of a purified protein derivative into the inner forearm that will result in a 6-10 mm welt that will disappear within a few hours. In that case, your doctor may want you to have another TB skin test in 8 to 10 weeks. If you test positive, you'll need to take medication -- for several months, in most cases -- to cure it. Older people have less elastic, thinner skin, some younger people have really thick skin...it just takes doing a couple more. The site may itch and become reddened, but should not be rubbed or scratched. The client should not disturb the site during this time. The TB skin test is left uncovered for 48 to 72 hours 1. Ideally you get a wheal, but if someone has TB they will react. Go to your doctor for the tuberculosis skin test. The TB skin test is performed by injecting a small amount of fluid (called tuberculin) into the skin on the lower part of the arm. Seriously, people have different skin qualities. [4] X Trustworthy Source Centers for Disease Control and Prevention Main public health institute for the US, run by the Dept. A person given the tuberculin skin test must return within 48 to 72 hours to have a trained health care worker look for a reaction on the arm. of Health and Human Services Go to source This procedure will reduce the likelihood that a boosted reaction is later interpreted as a new infection. [2] X Trustworthy Source Centers for Disease Control and Prevention Main public health institute for the US, run by the Dept.

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