The Antigliadin IgG tests for gluten sensitivity.

The most sensitive test for gluten sensitivity is Dr. Fine's stool test through www.enterolab.com This test cannot diagnose celiac disease as celiac disease is currently defined by a positive intestinal biopsy or a positive skin biopsy. Dr. Fine contends that the antibodies to gluten will first show up in the gut before they show up in the blood and before damage is done to the villi.

Here is the link to the section about gluten sensitivity vs celiac disease on The Gluten File that Cara mentioned http://jccglutenfree.googlepages.com...sceliacdisease

I know that if one has a low total Iga then all Iga may give false negative results. I don't know how a low IgE affects tests. This may help http://www.dlslab.com/dls/page_serve...96EEE16E2B313C It says <80 for an 8 year old.
Anne