Understanding blood panels

[Catusha]

Hi there, 

I've read other people posting their results from their coeliac blood tests with a number within a reference range. However my blood panels didn't contain a number. It said:

Diamidated Gliadin IgG Ab (Bioplex) : not detected

t-Transglutaminase IgA Ab (Bioplex) : not detected

 

There was also a comment saying negative results could be seen in people with coeliac already on a gluten-free diet. Which I think I may have been when this was done... 

Do these tests indicate anything about IgA deficiency? Is it worth doing a gluten challenge or is it very very unlikely that I have it? 

Somehow I naturally don't eat much gluten. I don't like the feeling I get afterwards! 

 

Thanks for your thoughts. 

[RMJ]

Looking at the technical/FDA information for BioPlex, it looks a little different from some other tests.  One test looks for IgA for both TTG and DGP, along with IgA deficiency, and the other looks for IgG for both TTG and DGP.  So it looks like you were tested for everything. I don’t know why the lab wouldn’t put your actual numbers but “not detected” would certainly mean negative for celiac antibodies.

If you weren’t eating gluten the tests wouldn’t be accurate however.