skin tb test reaction
August 20, 2014
During the physical exam, your doctor will check your skin tb test reaction lymph nodes swelling and a stethoscope to pay attention to the sound in the lungs while listening to breathe.
The diagnostic tool most commonly used for the tuberculin skin test is simple, even if the blood tests are always on the agenda. A small amount of a substance called tuberculin PPD is injected under the skin of the extension of the forearm. You should feel a little “bite.
In 48 to 72 hours, the doctor will check for swelling of the arm at the injection site. A hard, red bump means that there is high risk of infection of tuberculosis. The size of the survey determines if the test results are significant.
skin tb test reaction
Tests for tuberculosis are used as general population screens, but are people who are at high risk of exposure to TB, as the screen:
Those who have signs and symptoms compatible with active tuberculosis
Those with diseases or conditions that weaken the immune system, such as those with HIV or AIDS, making it more susceptible to TB infection
Those who are in confined living conditions such as shelters, migrant farm camps, nursing homes, schools and prisons
Health care workers and others whose occupations put them in touch with those who may have active TB
Those who have been in close contact with a person with active TB
Those or for a period of time in a foreign country where TB may occur more frequently experienced
Those who inject illegal drugs
The test is “positive” if wherein the fluid has been injected to a shock of a certain size. That means you probably have TB germs in your body. The majority of those with a positive TB skin test, latent TB infection. To be sure, the doctor will examine you and give you a chest x-ray. You may need other tests to see if you have active TB.
Blood tests can be used to confirm or rule out latent or active tuberculosis. These tests use sophisticated technology to measure the immune response to tuberculosis bacteria. QuantiFERON-TB Gold in tube and the T-SPOT.TB test are two examples of blood tests for tuberculosis.
These tests require only an office visit. A blood test can be useful if you are at high risk of TB infection, but a negative response of the skin, or if you have recently received the skin tb test reaction BCG vaccine.