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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.
It is important to note that some of these tests can also be used to rule out celiac disease and even diagnose other gluten-related disorders through this exclusionary process. If you are looking for a more thorough explanation of these tests and the diagnosis process please head to It starts with a blood test.