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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 Free recipes: Gluten-Free Recipes Where can I buy gluten-free stuff? Support this site by shopping at The Celiac.com Store.

What Constitutes An Iga "deficiency"?
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3 posts in this topic

My bloodwork showed my total IgA at 67 range is 81-463

Allergist said my IgA was low but clinically insignificant. I did not get to talk to him directly and don't plan on any further visits with him.

I just want to know what constitutes an IgA "deficiency"? My number is low but does it have to be low to a certain point to be considered a deficiency rather than just low? Or, is anything below range considered a deficiency?

Will a gluten-free or gluten-light diet affect the total IgA bloodwork?

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There have been several postings about that here before, and even a low-normal total IgA can skew the IgA based celiac tests they said here.

 

I do not know about the last question.

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You have an IgA deficiency. You do not have a normal amount of IgA, and they (usually) base lab's normal ranges on what 95% of the population has, so you are in the minority. Below the range is usually considered deficient, although there are varying degrees of that.

 

Your diet will not affect your total serum IgA, but a gluten lite or gluten-free diet COULD POTENTIALLY affect any celiac tests that use IgA (like DGP IgA , tTG IgA, EMA IgA, AGA IgA). The longer you are gluten-free, the more likely it becomes that your diet will affect your celiac test results.

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