Mare's Milk, IgE, Serum
Use
The test is useful for establishing the diagnosis of an allergy to mare's milk and defining the allergen responsible for eliciting signs and symptoms. It is intended to identify allergens responsible for allergic responses and/or anaphylactic episodes. This can include confirming sensitization prior to beginning immunotherapy or 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 patients where medical management does not depend upon identification of allergen specificity. For non-electronic ordering, complete 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, hence test results must be interpreted in the clinical context. False-positive results may occur in patients with markedly elevated serum IgE due to nonspecific binding to allergen solid phases. The allergens chosen for testing depend on patient age, history of allergen exposure, season, and clinical manifestations.
New York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 10936-3
- 10936-3
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
For 1 allergen: 0.3 mL; More than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL dead space
Container
Preferred: Serum gel; Acceptable: Red top; Submission: 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 |