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Celiac disease blood tests measure the amount of particular antibodies in the blood. The most common tests include: Tissue transglutaminase antibody (tTG), IgA class â the primary test ordered to screen for celiac disease.
There are several serological tests that are sensitive in the evaluation of celiac disease. Tissue transglutaminase antibody (tTG)-IgA in adults and most children is reported with a sensitivity and specificity greater than 90% and 95%, respectively2-4. Endomysial antibody (EMA)-IgA usually correlates with tTG.