IgE Immunoassay for Food Allergens (Screening Mix)

This test measures the amount of immunoglobulin E (IgE) antibodies in a sample of your blood that react to specific foods. When your immune system mistakes a harmless food protein for a threat, it produces these antibodies, which can trigger allergy symptoms the next time you eat that food.

The test checks for IgE antibodies against a mix of common food allergens, including but not limited to milk, eggs, peanuts, tree nuts, wheat, soy, fish, and shellfish. IgE is produced by your immune system in response to allergens, which may cause allergic reactions like hives, swelling, or digestive issues.

Your doctor may order this test if you have had symptoms such as hives, itching, swelling, stomach pain, vomiting, wheezing, or dizziness after eating a particular food. It can also help identify which foods may be causing your symptoms so you and your doctor can build a safe eating plan.

Your healthcare provider may recommend this screening if you have symptoms like itching, swelling, difficulty breathing, or digestive problems after eating certain foods, or if you suspect a food allergy based on family history or medical history.

The test is done with a simple blood draw. A healthcare professional will clean your skin, wrap a band around your upper arm, and collect a small sample of blood from a vein, usually in your arm. The process typically takes only a few minutes, and your sample is then sent to a laboratory for analysis.

A small blood sample is taken from your arm. The blood is then sent to a lab where it is analyzed using an immunoassay method to detect IgE antibodies specific to the listed food allergens.

After your results are ready, your doctor will review them with you and explain what they mean. Depending on the findings, you may be asked to keep a food diary, try an elimination diet, or see an allergy specialist for further testing, such as a skin prick test or a supervised oral food challenge.

If your screening test is positive, your doctor may recommend further testing (such as a food challenge or additional allergy-specific IgE tests) to confirm the specific food allergens and guide dietary or treatment plans.