White Pine, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to white pine by identifying the IgE antibodies associated with allergic reactions. It helps in defining the specific allergen responsible for eliciting signs and symptoms. The test is also used to identify allergens responsible for allergic responses or anaphylactic episodes, confirm sensitization prior to immunotherapy, and investigate specificity of allergic reactions to insect venom, drugs, or chemicals. It is not recommended for patients previously treated with immunotherapy if clinical sensitivity still exists or where allergen specificity does not impact medical management.
Special Instructions
For optimal results, the test should be ordered and processed electronically. If not ordering electronically, complete and send the Allergen Test Request form with the specimen.
Limitations
Testing for IgE antibodies is not useful for detecting residual clinical sensitivity in patients already treated with immunotherapy. False positives may occur in individuals with elevated serum IgE levels (>2500 kU/L) due to nonspecific binding. The results should be interpreted in the clinical context, especially since some with insignificant sensitivity may still show measurable IgE levels.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6282-8
- 6282-8
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 and gross lipemia are acceptable.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |