Mustard, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to mustard and defining the allergen responsible for eliciting signs and symptoms. It helps identify allergens responsible for allergic response and/or anaphylactic episodes, confirms sensitization prior to beginning immunotherapy, and investigates the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. It's not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in those whose 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. For a listing of allergens available for testing, see Allergens - Immunoglobulin E (IgE) Antibodies.
Limitations
Some individuals with clinically insignificant sensitivity to allergens may have measurable levels of IgE antibodies in serum, which must be interpreted in a clinical context. False-positive results for IgE antibodies may occur in patients with elevated serum IgE (>2500 kU/L) due to nonspecific binding to allergen solid phases.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6185-3
- 6185-3
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL for every 5 allergens requested
Minimum Volume
0.3 mL for 1 allergen
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis - OK; Gross lipemia - OK
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |