Lamb, IgE
Use
Testing for IgE antibodies is useful for establishing a diagnosis of an allergy to lamb. It helps in defining the specific allergen responsible for eliciting signs and symptoms, identifying allergens responsible for allergic responses and/or anaphylactic episodes, confirming sensitization before 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 residual clinical sensitivity or in those whose medical management doesn't depend on allergen specificity identification.
Special Instructions
Not provided.
Limitations
False-positive results for IgE antibodies may occur in patients with elevated serum IgE levels (>2500 kU/L) due to nonspecific binding. Some individuals with clinically insignificant allergen sensitivity might still show measurable IgE levels, making it necessary to interpret the results in the clinical context. Testing for IgE antibodies is not useful for patients already treated with immunotherapy if clinical sensitivity or medical management doesn’t depend on allergen specificity identification.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Fluorescence Enzyme Immunoassay (FEIA))
Biomarkers
LOINC Codes
- 6155-6 - Lamb IgE Qn
- 6155-6 - Lamb IgE Qn
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
None specified for gross hemolysis and gross lipemia.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |