Gum Arabic, IgE, Serum

Casandra

Casandra Test Code MC76178Version 1 (DRAFT)

Performing Lab

Lab Mayo Clinic LabLab Test ID GUMCPT Code 86003

Gum Arabic, IgE, Serum

Clinical Use

Use

The test is useful for establishing the diagnosis of an allergy to gum arabic and defining the allergen responsible for eliciting signs and symptoms. It helps identify allergens responsible for allergic response and/or anaphylactic episodes, confirm sensitization prior to beginning immunotherapy, and investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in patients in whom the medical management does not depend upon identification of allergen specificity.

Special Instructions

If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen. To list other allergens available for testing, see Allergens - Immunoglobulin E (IgE) Antibodies informational form. The specimen should be centrifuged and aliquoted into a plastic vial.

Limitations

Some individuals with clinically insignificant sensitivity to allergens may have measurable levels of IgE antibodies in serum, and test results must be interpreted in the clinical context. False-positive results for IgE antibodies may occur in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding to allergen solid phases. IgE antibodies are not useful in patients previously treated with immunotherapy for determining residual clinical sensitivity or when medical management does not depend on identifying allergen specificity.

Test Details

New York Approved