Additional tests are needed to determine if the person has latent TB infection or TB disease. There is no problem in repeating a TB skin test. If repeated, the additional test should be placed in a different location on the body e. Two TB blood tests are approved by the U. TB test T-Spot. Skip directly to site content Skip directly to page options Skip directly to A-Z link.
Tuberculosis TB. You may be at higher risk for getting TB if you: Are a health care worker who cares for patients who have or are at high risk for getting TB Live or work in a place with a high rate of TB infection. These include homeless shelters, nursing homes, and prisons. Have been exposed to someone who has an active TB infection Have HIV or another disease that weakens your immune system Use illegal drugs Have traveled or lived in an area where TB is more common.
What happens during a TB screening? On the first visit, your provider will: Wipe your inner arm with an antiseptic solution Use a tiny needle to inject a small amount of PPD under the first layer of skin. PPD is a protein that comes from the tuberculosis bacteria. It is not live bacteria, and it will not make you sick. A small bump will form on your forearm. It should go away in a few hours. Be sure to leave the site uncovered and undisturbed. Will I need to do anything to prepare for the test?
You don't need any special preparations for TB skin test or a TB blood test. Are there any risks to the test? What do the results mean? If you have questions about your results, talk to your health care provider.
Is there anything else I need to know about a TB screening? References American Lung Association [Internet]. Chicago: American Lung Association; c Diagnosing and Treating Tuberculosis; [updated Apr 2; cited Oct 12]; [about 4 screens]. Tuberculosis TB ; [cited Oct 12]; [about 3 screens]. Atlanta: U. Washington D. C: American Association for Clinical Chemistry; c— Sputum; [updated Jul 10; cited Oct 12]; [about 2 screens].
Tuberculosis; [updated Sep 14; cited Oct 12]; [about 2 screens]. Mayo Foundation for Medical Education and Research; c— Tuberculosis: Diagnosis and treatment; Jan 4 [cited Oct 12]; [about 4 screens]. Tuberculosis: Symptoms and causes; Jan 4 [cited Oct 12]; [about 3 screens]. This also helps decide how best to treat it. Some people may have a bad reaction to the TB skin test. Although this test suits some people, it is not right for everyone.
As such, people should always talk to a doctor to determine which test is best for them. It is common for a person with the TB infection to experience no symptoms initially, and to only develop these once the bacteria has become active in the body.
A positive TB skin test is an indicator that the body is infected with TB. It may be latent and show no symptoms, or it may already be active and causing symptoms. However, it is important to remember that TB is treatable.
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Tuberculosis is the deadliest infectious disease worldwide. What to expect with the tuberculosis skin test. Medically reviewed by Jill Seladi-Schulman, Ph. Procedure Results Diagnosis Symptoms Outlook Tuberculosis is an airborne disease caused by an infection of the Mycobacterium tuberculosis bacteria. Share on Pinterest The first part of the TB skin test will be an injection into the forearm with a small amount of tuberculin. What do the results of a TB test mean?
Share on Pinterest The TB skin test can have a number of factors that may affect the results.
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