How Is a TB Test Administered?
A tuberculosis (TB) test is only administered to populations at high risk for exposure to the bacteria, according to Labtestsonline.org. These populations include those with weakened immune systems, like those with HIV or AIDS; individuals confined to a living space, like prison or a nursing home; health care workers who come in contact with individuals with TB; people who frequently interact with someone with TB; and those coming from a foreign country where TB may be more common. Less frequently, TB testing is done prior to admission to a new school or job and to screen pregnant women. The test is used to diagnose latent TB infections or active disease, according to Labtestsonline.org.