Gluten Food Allergy Test in Arizona

What this test measures

Gluten is a group of proteins found in wheat, barley, rye, and some other grains. A true gluten allergy is an IgE-mediated food allergy, meaning the immune system reacts quickly after exposure and can cause symptoms such as hives, swelling, digestive upset, or, in severe cases, difficulty breathing. This is distinct from celiac disease, which is a different immune reaction that damages the small intestine over time.

The test measures allergen-specific IgE in serum using a quantitative immunoassay. A single blood draw is enough, and the laboratory reports the level of wheat or gluten-specific IgE along with a reactivity class. Because wheat proteins appear in many foods, results are often reviewed with other food allergen tests in the same panel.

A positive result indicates sensitization, and a healthcare provider interprets it alongside the timing and nature of your symptoms. Celiac disease requires different tests, including specific antibodies and, in some cases, a small bowel biopsy. Anyone with persistent digestive symptoms should discuss the appropriate evaluation with a qualified provider.