ADENOSINE DEAMINASE

The adenosine deaminase (ADA) test measures the level of ADA in the blood or other body fluids. ADA is an enzyme involved in purine metabolism and is crucial for the breakdown of adenosine from food and tissue turnover. Elevated ADA levels are often associated with certain diseases, such as tuberculosis and other granulomatous infections. In clinical practice, the ADA test is commonly used to diagnose and manage tuberculosis, especially in patients with pleural effusion. Additionally, ADA activity can be used as a marker for certain immune disorders, such as severe combined immunodeficiency (SCID).