TB screening tests are also used sometimes as part of a routine examination prior to starting school or a new job. Since mothers can pass TB to their unborn children, pregnant women are sometimes screened.Either a tuberculin skin test (TST) or an interferon gamma release assay (IGRA) may be performed to screen for TB:The tuberculin skin test involves two steps: the injection of a small amount of purified protein derivative (PPD) solution under the first layer of skin of the forearm and an evaluation of the injection site conducted by a health practitioner at 48 and/or 72 hours to see if a local skin reaction has occurred.The IGRA test measures the release of a substance called gamma interferon by white blood cells in a sample of blood when the cells are exposed to specific TB antigens. The IGRA test is not performed by all laboratories. The test requires viable white blood cells, so the IGRA blood sample must be received and tested by a laboratory within a designated window of time.
Sample Type - Skin Ink
Reporting Time - Please Call Customer care
Prerequisites - No special preparation required
Price - ₹590/-
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