TB Testing Options

An IGRA blood test measures how your immune system reacts to TB bacteria by detecting and assessing an immune response. The two primary IGRA blood tests are QuantiFERON Gold and T-SPOT. This test requires only a single blood draw, eliminating the need for a return visit, and provides results within 3-4 days. It is a more convenient option for individuals who cannot return for reading, especially when compared to traditional skin test TB methods.

TB (Tuberculosis) testing options include a skin test TB, which screens for tuberculosis infection by detecting the immune response to TB bacteria. This test takes seconds to administer, and a small bump forms under the skin. Patients need to return in 48-72 hours for reading, where a healthcare provider measures any reaction. A positive test requires follow-up, but it doesn't necessarily indicate active TB. Alternatively, there is also the IGRA blood test, which can be used as another option for TB testing.