TB Test Results: Understanding What They Mean
Tuberculosis (TB) is a severe disease that primarily targets the lungs, but can also influence other body parts. Though less common in the U.S. these days, TB is still a public health threat — particularly for people who work in health care, international travelers and people living in high-risk environments. If you searched TB test near me recently, it’s likely because you’re gearing up for school, a job or to travel. After you’ve had the test, interpreting the results is the next important step. This blog explains TB test results, their meaning, how to interpret them, and next steps. What Is a TB Test? There are two main types of tests for TB: Tuberculin Skin Test (TST): Also called the Mantoux test, this test involves injecting a small amount of tuberculin fluid (a substance made from the TB bacteria) under the skin of your forearm. After 48 to 72 hours, a health care provider will evaluate the area for swelling. Interferon-Gamma Release Assays (IGRAs): These are blood tests...