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Celiac Disease Antibody Tests

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Also known as: Anti-tissue Transglutaminase Antibody; tTG; tTGA; Endomysial Antibody; EMA; DGP; ARA; Total IgA
Formal name: Tissue Transglutaminase Antibody; Deaminated Gliadin Peptide Antibodies; Anti-Endomysial Antibodies; Anti-Reticulin Antibodies; Quantitative Immunoglobulin A

At a Glance

Why Get Tested?

To help diagnose celiac disease and to evaluate the effectiveness of a gluten-free diet

When to Get Tested?

When you have symptoms suggesting celiac disease, such as chronic diarrhea, abdominal pain, anemia, and weight loss; when an infant is chronically irritable or fails to grow at a normal rate; when a close family member has celiac disease; when you are being treated for celiac disease

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?

Follow your health practitioner's instructions; for diagnosis, you should continue to eat foods that contain gluten for a time period, such as several weeks, prior to testing; for monitoring, no preparation is necessary.