Lobster, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to lobster and defining the allergen responsible for eliciting signs and symptoms. It helps identify allergens responsible for allergic responses and/or anaphylactic episodes and confirms sensitization prior to beginning immunotherapy. It is also useful in investigating the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens.
Special Instructions
Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in situations where medical management doesn't rely on identification of allergen specificity. If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen.
Limitations
Some individuals with clinically insignificant sensitivity to allergens may have measurable levels of IgE antibodies in serum, requiring results to be interpreted in 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.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Fluorescence Enzyme Immunoassay (FEIA))
Biomarkers
LOINC Codes
- 6165-5
- 6165-5
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
For 1 allergen: 0.3 mL
Container
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 |