Blood Tests

American Expert Doctors tuberculosis blood test can confirm the existence of latent or active tuberculosis. The immune system’s response to the TB germs is assessed using high-tech tuberculosis blood tests only at American Expert Doctors.

Blood sampling by an older man

American Expert Doctors tuberculosis (TB) blood test, also known as an Interferon Gamma Release Assay or IGRA, is a particular process of determining whether or not you have TB bacteria in your body. A tuberculosis blood test can be used instead of a tuberculosis skin test.


IGRAs (Interferon-Gamma Release Assays) are blood tests for tuberculosis infection.

Tuberculosis blood tests called interferon-gamma release assays (IGRAs) that can accurately detect tuberculosis infection caused by Mycobacterium tuberculosis.

You should have a TB blood (or TB skin) test if you’ve had regular close contact with someone who has active TB disease, lived in an area where many people have TB, worked or resided, or have a weak immune system.

Types of tuberculosis blood tests (IGRAs) available:



IGRAs are tests that assess a person’s immune response to M. tuberculosis. When white blood cells from people who have been infected with M. tuberculosis are combined with antigens produced from M. tuberculosis, interferon-gamma (IFN-g) is released.

Benefits of American Expert Doctors IGRAs:

  1. Single patient visit during the test.

2. IGRAs test results in 24 hours.

3. No false IGRA test result is produced by past BCG vaccination.

4. Reduced the potential risk of adverse events

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