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      Frequently Asked Questions About Celiac Disease   09/30/2015

      This Celiac.com FAQ on celiac disease will guide you to all of the basic information you will need to know about the disease, its diagnosis, testing methods, a gluten-free diet, etc.   Subscribe to FREE Celiac.com email alerts   What are the major symptoms of celiac disease? Celiac Disease Symptoms What testing is available for celiac disease? - list blood tests, endo with biopsy, genetic test and enterolab (not diagnostic) Celiac Disease Screening Interpretation of Celiac Disease Blood Test Results Can I be tested even though I am eating gluten free? How long must gluten be taken for the serological tests to be meaningful? The Gluten-Free Diet 101 - A Beginner's Guide to Going Gluten-Free Is celiac inherited? Should my children be tested? Ten Facts About Celiac Disease Genetic Testing Is there a link between celiac and other autoimmune diseases? Celiac Disease Research: Associated Diseases and Disorders Is there a list of gluten foods to avoid? Unsafe Gluten-Free Food List (Unsafe Ingredients) Is there a list of gluten free foods? Safe Gluten-Free Food List (Safe Ingredients) Gluten-Free Alcoholic Beverages Distilled Spirits (Grain Alcohols) and Vinegar: Are they Gluten-Free? Where does gluten hide? Additional Things to Beware of to Maintain a 100% Gluten-Free Diet What if my doctor won't listen to me? An Open Letter to Skeptical Health Care Practitioners Gluten-Free recipes: Gluten-Free Recipes Where can I buy gluten-free stuff? Support this site by shopping at The Celiac.com Store.

Iga Deficient, What Tests?
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4 posts in this topic

Hello,

I have a friend who wants to have her son tested but he is IgA deficient (apparently she had him screened as an infant due to signs of Celiac, but he turned up IgA deficient and the doctor would do no further testing). Anyway, he's now 8 and she wants to have him re-tested. Are there tests that will work in spite of an IgA deficiency, or is biopsy the only definitive diagnostic tool?

Thanks,

Alissa

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People with IgA deficiency require a different version of the antibody tests. The tTG and EMA tests have IgG versions and these tests will then be accurate for someone with IgA deficiency. IgA deficiency is diagnosed when someone has a total serum IgA test and the results are very close to zero (less than 10mg/dl).

Sounds like the doctor didn't know anything about Celiac or how to test someone who is IgA deficient. If he had called his lab they would have told him there are differenct versions.

Here's a fact sheet she can print off and take in when she goes to have her son retested.

http://www.cureceliacdisease.org/wp-content/uploads/2011/09/CDCFactSheets3_Antibody.pdf

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There is also a newer test, the DGP (deamidated gliadin peptide) which has an IgG version and is very specific for celiac.

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