Quest offers the QuantiFERON-TB Gold Plus test. We make it easy to test for the presence of tuberculosis bacteria with our Tuberculosis Blood Test.

Sensitivity of 79% and specificity of 97% with specificity being as low as 59% in BCG-vaccinated patients (high false positive).

Requires 2 separate appointments and manual results.Highly accurate, and unaffected by the Bacillus Calmette-Guerin (BCG) vaccine.Requires a single blood draw in 1 visit with results reported directly to an EHR system.There are two blood tests available: QuantiFERON-TB Gold Plus and T-Spot. It is a simple blood test that is processed in a lab with a definite positive or negative result, and only requires one visit. The TB blood test is an interferon-gamma release assay, or IGRA.If you don’t have it tested within 72 hours, you must be retested. You must wait 48 to 72 hours to have the results visually read. They inject a small amount of tuberculin into your skin. The Mantoux TB skin test requires 2-4 visits to a health care professional.Now, you have the option of a one-time laboratory blood test with clear positive or negative results sent directly to you with far better accuracy than the skin test.Ī TB test helps determine if someone is infected with Mycobacterium tuberculosis, the bacteria that causes tuberculosis. The results are very subjective and can differ based on the person who is reading them. The skin test is where you get a small injection into your arm and wait 48-72 hours to have it visually read by a medical professional. Many employers require that new employees and volunteers give proof of a negative test, especially in health care facilities and schools.īefore 2005, your only option for TB testing was the multi-visit skin test. It’s highly infectious and kills 1.6 million people worldwide every year1.

Tuberculosis (TB) is a serious health concern around the world.

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