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.
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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
Where can I buy gluten-free stuff?
Support this site by shopping at The Celiac.com Store.
Learn more about testing for celiac disease here:
You do have to be on a gluten diet for ANY of the celiac tests (blood and biopsy) to work. While the endoscopy (with biopsies) can reveal villi damage, many other things besides celiac disease can cause villi damage too:
So, both the blood test and endoscopy are usually ordered. There are some exceptions, but those are not common.
Exactly what are your allergy symptoms? Were they IgG or IgE? Allergy testing as a whole is not super accurate -- especially the IgG. Were you on any H1 or H2 antihistamines for the last five days when you were tested?
As far as celiac testing, four days without consuming gluten probably would not impact testing.
I've been seeing my dr for a few weeks now about my stomach issues. We've ruled out the gallbladder and h-pylori and today I had the celiac blood tests done. From the reading I've done the past two days, it seems to me that it's highly likely that I have it. I've had digestive issues for years, but they've gotten progressively worse over the past 6 months or so. Pain and nausea when eating, bloat, eternal constipation, dh rash, at it's worse, tight cramp-like pain in a fist under my sternum, radiating through my back and around my right side keeping me up at night. Also heartburn/reflux and trouble swallowing, etc.
Anyway, about 2 months ago, I needed a change. I didn't go to the dr immediately because it seemed pointless. (I've mentioned stomach ache when eating to drs before and been blown off.) So, I started the Whole30 elimination diet (takes out soy, grains, dairy, peanuts, and leaves you basically eating meat & veggies). Figured it would show me what I needed to take out of my diet and hopefully feel better. It worked- I felt great! And it seems that grains and gluten are my biggest offenders. But, now I've been off gluten prior to celiac testing. It's been 7 weeks. After 4 weeks I tested steal cut oats, that I later found out were probably glutened. And then nothing until yesterday. Yesterday I had 2 pieces of bread and a muffin and today I had two pieces of bread and then the blood test. Is this going to be enough to show up on the tests? My dr said that it would probably show up, since I had some yesterday and today and was currently having symptoms. But, google seems to say that I should be glutened for 2 wks straight before testing. Has anyone tested positive after just a little gluten? If it's negative should I insist on doing it again after weeks back on gluten? I feel awful, but do want clear answers. Obviously, gluten's not going to be a part of my life any more either way.
So just to clarify had not consumed any gluten for about 4 days before testing. I was assured by my allergist that it wouldn't affect the test. But what was alarming was that she retested my food allergies (my most recent reaction was two weeks ago) and every food allergy I have came back negative. I don't understand how that is possible. These food allergies developed when I was 20 and I am almost 24 now.
Thanks! You too! I have learned from this experience to take charge of my own health. It's nice at least that we can try the gluten-free treatment without a firm diagnosis or a doctor confirming the disease. I've also felt some of the gluten withdrawal symptoms, and my stomach pain ebbs and flows, but I'm determined to stick with the gluten-free diet to see what a difference it makes.
Gemini, thank you! This was really validating and useful for me to hear. I've felt so confused through this process and just want some answers. If the biopsy results do come back negative, I'm going to follow your advice and do the gluten-free diet with repeat blood testing after a while. If they come back positive, well, then I'll have my answer. I'm supposed to get them back next week.