Serum Anti-Gliadin IgA (Anti-DGP IgA)

Specimen Required

3-5cc Clotted Blood or Serum

Fasting Required

Purpose of the Test

This test is ordered to help diagnose celiac disease, a disorder that affects the small intestine, and sometimes causes other complications in the body. Anti-gliadin IgA antibodies are produced by the immune system in response to gliadin, a protein found in wheat, rye, and barley. Elevated levels of these antibodies may indicate that a person has celiac disease or is at an increased risk of developing it.

When this test is required

This test is requested when a person has symptoms of celiac disease or is suspected of having the disorder.

What the Test Detects

This test measures the levels of anti-gliadin IgA antibodies in the blood.

Preparation for the Test

No specific preparation is usually needed for this test.

Sample Requirements

A blood sample is required for this test.

Additional Notes

This test should be interpreted in conjunction with other tests and clinical findings. A diagnosis of celiac disease cannot be made based on this test alone. Other tests that may be used to help diagnose celiac disease include tissue transglutaminase antibodies (anti-tTG), endomysial antibodies (EMA), and total serum IgA levels.

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