Tuberculosis Blood Test

The Tuberculosis Blood Test aids in the detection of the tuberculosis bacteria in the body. This test is for those who have been exposed to tuberculosis bacteria (Mycobacterium tuberculosis); require evidence of a negative tuberculosis test; or are at high risk for contracting tuberculosis.
+ $6.00 Physician Service Fee

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The Tuberculosis Blood Test helps detect Mycobacterium tuberculosis, the bacteria that causes Tuberculosis (TB). M. tuberculosis is detected in both active TB and latent TB.
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Must be 18+ years of age to purchase

Orders not permitted in: AK, HI, AZ

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Blood (venipuncture - a needle is used to draw blood from a vein)

Schedule an appointment, then visit one of our Patient Service Centers
About the Test

The Tuberculosis Blood Test is an Interferon-Gamma Release Assays (IGRAs) whole-blood test that detects the immune system’s response to M. tuberculosis. M. tuberculosis, or TB bacteria, usually attack the lungs. However, TB bacteria can attack any part of the body such as the spine, kidneys, and brain. In fact, not everyone that becomes infected with TB bacteria will become sick. As a result, two TB-related conditions exist: latent TB infection (LTBI) and TB disease. If not treated properly, TB disease can be fatal. This test does not differentiate between latent tuberculosis infection (LTBI) and active TB disease.

LTBI is a carrier state of TB that can last for weeks, months, or years before developing into TB disease. Active TB is when tuberculosis bacteria overwhelm a person's immune system, and symptoms start to appear. The Tuberculosis Blood Test helps detect the presence of M. tuberculosis and can be a first step in the process of determining is someone has latent TB infection or TB disease. Further testing may be required if the blood test is positive.

Tuberculosis Blood Test

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You can get the information you need to support a healthy life - for yourself.

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Conveniently shop and pay online for lab tests without a doctor's visit. An independent physician will review your request and if appropriate, confirm your order and offer oversight.

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Conveniently schedule your appointment online at one of our Quest Diagnostics locations. Certain tests may also offer self-testing home delivery.

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