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Were any other celiac antibody tests run besides the DGP-IGA? Was a total IGA test run to check for IGA deficiency? There are multiple IGA tests that can be run as well as several IGG tests when checking for celiac disease. The DGP-IGA test is helpful when diagnosing children whose immune systems are immature.  

I think we all wish that managing celiac disease was a simple as just avoiding gluten. And I think we all enter into the journey with that naive misconception. And for some, it is that simple. But for many, it is not. The same processes that resulted in the immune system misidentifying gluten as a threat opens the door for misidentifying other food proteins as threats. At it's core, all this simply is the result of an immune system that has become dysfunctional in some ways and is hypervigilant.  I assume you already know that genetic testing cannot be used to diagnose celiac disease since 40% of the general population has the genetic potential to develop celiac disease while only about 1% develop active celiac disease. However, genetic testing can be used as a rule out and thus to distinguish between celiac disease and NCGS (Non Celiac Gluten Sensitivity). 

It doesn't look like either avenin or casein would contribute to her IgA levels being high. From my understanding, that is only an indication of gliadin, which is only in gluten.  I should have noted that she does not have any symptoms of being constantly exposed to gluten as the test result shows. No intestinal discomfort, no brain fog, no lack of energy. She is still growing and gaining weight, which was the first indicator that she was not absorbing nutrients properly and led to her celiac diagnosis. 

That is very disheartening... She's due for the celiac genetic test, and the gliadin test again in 3 months.  Oats are easier to avoid, the milk is going to be an issue.  Thank you! We'll see how this goes.