T-SPOT

The T-SPOT test is a blood test that helps detect if someone has been exposed to tuberculosis (TB). It measures how immune cells in your blood respond to TB proteins by counting specific cell reactions. If the cells react strongly, it suggests either a current or past TB infection. The test is quick, can be done with a small blood sample, and is useful for diagnosing TB especially in people who have received the BCG vaccine or have certain health conditions. It helps healthcare providers decide on the best approach for treatment or further testing.