Sardine (Pilchard), IgE, Serum

Casandra

Casandra Test Code MC79830Version 1 (DRAFT)

Performing Lab

Lab Mayo Clinic LabLab Test ID SARDCPT Code 86003

Sardine (Pilchard), IgE, Serum

Clinical Use

Use

This test is useful for establishing a diagnosis of an allergy to sardine (pilchard) and for defining the allergen responsible for eliciting signs and symptoms. It also helps in identifying allergens responsible for allergic response and/or anaphylactic episode, confirming sensitization prior to beginning immunotherapy, and investigating the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. However, it is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in patients for whom the medical management does not depend upon identification of allergen specificity.

Special Instructions

For a listing of allergens available for testing, see the Allergens - Immunoglobulin E (IgE) Antibodies document. If not ordering electronically, complete, print, and send an Allergen Test Request form (T236) with the specimen.

Limitations

Testing for IgE antibodies may result in false positives in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding to allergen solid phases. Some individuals with clinically insignificant sensitivity to allergens may yield measurable levels of IgE antibodies; therefore, test results must be interpreted in the clinical context.

Test Details

FDA Approved