The tTG IgA test detects antibodies associated with celiac disease to help diagnose gluten sensitivity and intestinal damage.
The Tissue Transglutaminase (tTG) Antibody, IgA test is a blood test used to detect IgA antibodies against tissue transglutaminase, an enzyme involved in the immune response in celiac disease.
In individuals with celiac disease, consumption of gluten triggers an immune reaction that damages the lining of the small intestine. The presence of tTG IgA antibodies is highly sensitive and specific for this condition.