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Question About Antibody Tests

UzairH

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UzairH Newbie
UzairH
Posted

Hi. My doctor has ordered these antibody blood tests:

Anti-Cardiolipin IgG

Anti-Gliadin Antibody IgA

Anti-Gliadin Antibody IG

First, i'm not sure about the first one Anti-Cardiolipin IgG, since I have not read about it. Wouldn't the Anti-tissue transglutaminase Antibody (tTG), IgA test be better?

Also, I've been on a gluten-free diet for 2 weeks now, and I want to ask if I should take the test now, or eat gluten for a few days and then take the test? How long then should I delay?

From I've read I believe the tTG test is better, but since the lab at the hospital does not do this, how reliable are the above three tests in indicating celiac disease?

Thanks for the help!!

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TestyTommy Rookie
TestyTommy
Posted

Check out the FAQ section on this website. For the blood test to be accurate, the patient should be eating 0.3 of gluten per kilogram of body weight for 2 months before the test. That works out to about one slice of bread for every 18 pounds of bodyweight.

If you're on a gluten-free diet, the test will probably be negative. That's why so many people on these boards have had negative test results, but are celiacs nonetheless.

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