Tissue Transglutaminase (tTG, IgA)


Before gluten has been removed from the diet, a tissue Transglutaminase Antibody (IgA) test is a highly specific blood test used to help identify gluten-sensitive enteropathies such as Celiac Spru disease. It can also be used to help diagnose other autoimmune conditions such as herpetiformis (a skin condition associated with gluten sensitive enteropathies.

Test Preparation For Optimal Results:
It would be best to have this test performed before gluten has been removed from the diet. If possible, have the lab collected early in the morning or shortly after waking. For comparison purposes, have subsequent labs collected close to the same time.

Disclaimer: Your health care provider should evaluate a deviation from normal ranges.