Sesame Seed, IgE, Serum
Use
The Sesame Seed IgE test is useful for establishing a diagnosis of an allergy to sesame seed, and for defining the allergen responsible for eliciting signs and symptoms. It can identify allergens responsible for allergic responses and/or anaphylactic episodes, confirm sensitization prior to beginning immunotherapy, and investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemicals. Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or if allergen specificity identification does not impact medical management.
Special Instructions
For a listing of allergens available for testing, refer to the Allergens - Immunoglobulin E (IgE) Antibodies PDF. If not ordering electronically, complete and send an Allergen Test Request (T236) with the specimen.
Limitations
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. Some individuals may have measurable levels of IgE antibodies in serum with clinically insignificant sensitivity to allergens. Results must be interpreted in the clinical context.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6242-2
- 6242-2
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
Preferred: Serum gel. Acceptable: Red top. Submission 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 |