# Allergen Profile, Walnut, IgE With Component Reflex

> This test measures specific IgE antibodies in your blood that react to different individual proteins found in walnuts. It helps identify whether a sensitivity is caused by proteins associated with severe reactions or by proteins that cross-react with pollen and typically cause milder symptoms. This distinction helps doctors differentiate between a primary food allergy and cross-reactivity from environmental triggers. However, this test cannot predict the exact severity of a future reaction or diagnose an allergy without a review of your medical history.

- Labcorp code: 604600
- Category: [Allergies & Sensitivities](https://app.picardo.health/labs/tests/allergies-sensitivities.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=604600&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.