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What is Tuberculin (TB) Skin Test?

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.

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Who needs a TB test?

Center for Disease Control and prevention (CDC) wants all employees to have TB test done who work in the following settings: Health Care Settings of Adult family homes (within 3 days of employment) Boarding homes Nursing homes (within 3 days of employment) Chemical dependency Staffed residential homes Group residential facilities Childbirth center Hospitals (healthcare workers)

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What does the two-step Tuberculosis (TB) test involve?

A small injection is administered under the skin. After 48 to 72 hours, the agency that administered the injection will read the test by looking at the appearance of the injection site. One to three weeks later, another injection will be given, and the reviewing of the injection site will be repeated 48 to 72

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Can they opt to have a chest x-ray instead of a TB test?

While a chest radiograph is useful when evaluating someone for active TB disease, it does not identify TB infection. A TB test can indicate if someone has been infected. An employee’s baseline TB test result allows the employer to compare subsequent TB test results, if necessary, to identify a potential work exposure. For this reason,

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Why is a two-step TB skin test needed?

Two-step testing is necessary to obtain an accurate baseline when using the TST. The reason this is necessary is because of a condition referred to as Booster Phenomenon. Booster Phenomenon can occur when someone who was infected with TB in the past has a TST placed years after being infected. Because their body is so

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Who can administer, read (measure), and interpret TB skin testing?

Persons whose healthcare license/certificate allows them to administer intradermal medications within their scope of practice may administer a TB skin test and read (measure) induration. Healthcare license/certificates which allow administration and reading of a TB skin test include: Certified Medical Assistants (MA-C) Licensed Practical Nurse (LPN) Registered Nurse (RN) Advanced Registered Nurse Practitioner (ARNP)

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