Egg Yolk, IgE, Serum

Casandra

Casandra Test Code MC91117Version 1 (DRAFT)

Performing Lab

Lab Mayo Clinic LabLab Test ID YOLKCPT Code 86003

Clinical Use

Use

The Egg Yolk, IgE test is useful for establishing a diagnosis of an allergy to egg yolk, defining the allergen responsible for causing signs and symptoms, and identifying allergens that might be responsible for an allergic response or anaphylactic episode. It can also confirm sensitization prior to immunotherapy and investigate the specificity of allergic reactions to various allergens, including insect venom, drugs, and chemicals. However, it's not useful for evaluating patients previously treated with immunotherapy to determine if residual clinical sensitivity exists, or in cases where the medical management does not rely on allergen specificity.

Special Instructions

For a complete list of allergens available for testing, refer to the Allergens - Immunoglobulin E (IgE) Antibodies documentation. If not ordering electronically, complete and send an Allergen Test Request form with the specimen.

Limitations

While the test determines IgE antibodies in serum, false-positive results may occur in individuals with elevated IgE levels due to nonspecific binding. Additionally, some individuals with clinically insignificant sensitivity to allergens may present detectable levels of IgE antibodies, necessitating careful interpretation in the clinical context. Results should always be interpreted alongside clinical history and other diagnostic findings.

Test Details

FDA Approved