Why is a celiac disease antibodies test done?
A celiac disease antibodies test is done to:
- Help diagnose celiac disease.
- Check how well a gluten-free diet is working as a treatment for celiac disease.
- Look for celiac disease in people who don't have symptoms but who do have close family members with the disease.
How is a celiac disease antibodies test done?
A health professional uses a needle to take a blood sample, usually from the arm.
How do you prepare for a celiac disease antibodies test?
If the test is being used to help diagnose your symptoms, it must be done while you are still eating foods that contain gluten. So if you have started a gluten-free diet, your doctor will have you go back to eating gluten foods several weeks ahead of the test.
You won't have to do anything else to prepare for the test.
What do the results of a celiac disease antibodies test mean?
There are several types of celiac disease antibodies that can be measured. The most common are:
- Tissue transglutaminase antibodies, or anti-tTG.
- Deamidated gliadin peptide antibodies, or anti-DGP.
- Anti-endomysial antibodies, or anti-EMA.
Negative (normal) | Celiac disease antibodies are not found in your blood. It's not likely that you have the disease. |
|---|---|
Positive (abnormal) | Celiac disease antibodies are found. It's likely that you have the disease. |
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