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IgE blood tests measure specific allergy antibodies circulating in your blood from a single venous sample, while skin prick tests introduce small amounts of allergens directly into the skin surface and observe the reaction. Blood tests offer several advantages: they carry no risk of triggering an allergic reaction, are not affected by antihistamine use, can be performed on patients with severe eczema or skin conditions, and test for many allergens simultaneously from one sample.

No, this is one of the key advantages of IgE blood testing over skin prick testing. Antihistamines, corticosteroids, and other allergy medications do not affect the measurement of specific IgE antibodies in your blood, so you can continue taking all your regular medications before the test.

Our standard food allergy panel tests for the most common allergenic foods including peanut, tree nuts such as almond, cashew, hazelnut, and walnut, cow's milk proteins, egg white and yolk, wheat, soy, fish, shellfish including shrimp and crab, sesame, and mustard. Extended panels can include additional foods such as banana, kiwi, avocado, celery, and specific spices.

A food allergy involves the immune system producing IgE antibodies against specific food proteins, causing reactions that can range from hives and swelling to anaphylaxis. Reactions typically occur within minutes to hours of exposure.