Individual test · Labcorp 164002

Celiac Antibodies tTG IgA, DGP IgA, Total IgA With Reflex to tTG IgG and DGP IgG

This test measures specific antibodies that the immune system creates in response to gluten, a protein found in wheat, barley, and rye. It helps show whether the body is reacting to gluten in a way that damages the small intestine, which is the main concern in Celiac disease. Doctors use these results to help determine if digestive symptoms are caused by Celiac disease rather than other stomach conditions. While highly accurate, a positive result usually requires a tissue biopsy to confirm the diagnosis.