ADA

An ADA test is advised when there is fluid around the lungs, heart, or in the abdomen, or suspected meningitis, and tuberculosis is suspected. It is especially useful with persistent fever, night sweats, weight loss, chest pain, breathlessness, or abdominal swelling, and when fluid analysis shows high lymphocytes.

An ADA test is usually done on a fluid sample collected through thoracentesis, paracentesis, pericardiocentesis, or lumbar puncture. Fasting is usually not required. Inform your doctor about any blood thinners, bleeding disorders, allergies, or pregnancy, and about any TB medicines you have started, as treatment can affect results.

No, fasting is usually not required for an ADA test. You can eat and drink normally unless your doctor advises otherwise, for example if sedation is planned for the fluid collection procedure. Inform your doctor about any blood thinners or bleeding disorders, and follow the hospital’s specific instructions.