--is, I believe, part of an allergy panel and tests for allergy to wheat, but is not specific to autoimmune reaction to gluten peptides.

Pabb is correct; that elevated IgA often happens in celiacs (and a number of other conditions), and it looks like they only did the anti-transglutaminase IgA to look for frank celiac, as this is the test most often associated with frank villous damage. Still, as many as 20% of biopsy-proven celiacs have negative anti-transglutaminase test results . . .

They probably should at least run an anti-glidain IgA and IgG--more sensitive to overall autoimmune reaction to gluten, though less specific.