Can You Get Accurate Blood Tests 3 Weeks Off Of Gluten?

[CantEvenEatRice]

My 20 month old son tested positive through Enterolab. He has been on the gluten free diet for about 3 weeks. We think he has some other allergies so the doctor ordered the ImmunoCap panel and wanted to run the transglutamise tests for Celiac. He just had his blood drawn today. Everything I read says that you have to be eating gluten to get accurate results. How long is too long to be off of gluten to still get accurate results? Does it leave your blood immediately? And, if you do a gluten challenge, how long will he have to eat gluten before testing? I probably won't put him back on gluten, but I am just curious.

[tarnalberry]

I believe that the two weeks I was off gluten was enough to give me inconclusive results. Doctors will say it's not - though some will say it could affect it. It all depends on your body, it's ability to heal, and how damaged it was. (The long winded way of saying "there's no good way to be sure".) It could very well affect the tests, but there's a small chance it won't make them go from positive to negative. Testing under 2-3 years old is very unreliable anyway.

[tiffjake]

I know that for ME, mine were really "off" after 4 weeks gluten-free. Doc was suprised, but hey, guess my body was sick and tired of it!

[Kaycee]

I know that for ME, mine were really "off" after 4 weeks gluten-free. Doc was suprised, but hey, guess my body was sick and tired of it!

My tests after 4 weeks gluten free showed up as positive. And two tests since, have still shown up positive, even though I have been as gluten free as I possibly can be.

Everyone is different.

Catherine