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Hello,

I just found that the tissue transglutaminase test that I was given to
determine whether I have CD or not was based on IgA, not IgG.  I was
positive for anti-gliadin IgG, but negative for anti-gliadin IgA.  To my
knowledge, I was never tested for total IgA, so I'm not sure whether I might
be IgA deficient.  Is it common practice to use an IgA test for tissue
transglutaminase?  Should I consider this result questionable?  If I request
a total IgA test, what would be the normal range, and what would constitute
deficiency?  Would I need to be consuming gluten to get the total IgA test
now that I have been GF for some time?


Thank you,
Erin



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