Use

The Walnut-Food Components, IgE, Serum test is used for evaluating patients suspected of having a walnut-food allergy, particularly to the major allergen components, Jug r 1 and Jug r 3. Allergies to tree nuts, including walnuts, are prevalent and can cause severe reactions that appear rapidly after ingestion. Tree nut allergies are among the most dangerous, capable of causing anaphylaxis, and are often persistent throughout a patient's lifetime. Jug r 1 is a major component that induces systemic allergic reactions to walnuts and has a high positive predictive value for diagnosing walnut allergy. Jug r 3 is also a major allergen associated with severe allergic reactions. Both components are important for determining walnut allergy, and cross-reactivity with other nut allergens is possible.