Question 1

How accurate is the Food Allergy Panel in diagnosing food allergies?

Accepted Answer

The Food Allergy Panel measures IgE antibodies and is highly sensitive for detecting sensitization to specific foods. However, it's important to understand that a positive result indicates sensitization, not necessarily a clinical allergy. The test should be interpreted alongside symptoms and clinical history by a healthcare provider for accurate diagnosis.

Question 2

Can I eat the foods I'm testing for before taking this test?

Accepted Answer

Yes, you can continue eating normally before the test. Unlike skin prick tests, this blood test measures antibodies that remain in your system regardless of recent food consumption. Taking antihistamines or avoiding specific foods will not affect the accuracy of your IgE antibody results.

Question 3

What's the difference between food allergies and food intolerances?

Accepted Answer

Food allergies involve an immune system response with IgE antibodies and can cause serious reactions including anaphylaxis. Food intolerances, like lactose intolerance, involve difficulty digesting certain foods but don't involve the immune system. This panel specifically tests for IgE-mediated allergies, not intolerances or sensitivities.

Question 4

Will this test detect all possible food allergies?

Accepted Answer

This basic panel tests for 15 of the most common food allergens that account for the majority of food allergic reactions. However, it doesn't test for every possible food allergen. If you suspect allergies to foods not included in this panel, you may need additional individual allergen tests or a more comprehensive food panel.

Question 5

What should I do if my results show elevated IgE levels to certain foods?

Accepted Answer

Elevated IgE levels indicate sensitization and potential allergy to specific foods. You should share these results with a healthcare provider or allergist who can interpret them in the context of your symptoms and medical history. They may recommend avoiding certain foods, carrying emergency medications, or conducting additional tests like oral food challenges.

Question 6

Can food allergies develop or disappear over time?

Accepted Answer

Yes, food allergies can change throughout life. Some childhood food allergies, particularly to milk and eggs, may be outgrown, while others like peanut and tree nut allergies typically persist into adulthood. New food allergies can also develop at any age. Regular retesting may be recommended to monitor changes in sensitization levels.

Question 7

How does this blood test compare to skin prick allergy testing?

Accepted Answer

Both tests detect IgE-mediated allergies but work differently. Blood tests measure circulating IgE antibodies and are not affected by medications like antihistamines. Skin tests show immediate reactions but can be influenced by medications and skin conditions. Blood tests are often preferred for comprehensive screening and when skin testing isn't practical or safe.

Food Allergy Panel: Basic (15 Foods)