Privet Tree, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to privet tree by identifying the specific allergen responsible for eliciting allergic signs and symptoms. It helps in identifying allergens responsible for allergic responses and/or anaphylactic episodes, confirming sensitization ahead of immunotherapy, and investigating specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. It plays a crucial role in IgE-mediated hypersensitivity diagnosis.
Special Instructions
When ordering this test without electronic options, complete, print, and send an Allergen Test Request form (T236) with the specimen. Please refer to the Allergens - Immunoglobulin E (IgE) Antibodies document for a detailed listing of allergens available for testing.
Limitations
This test is not useful for patients previously treated with immunotherapy to determine if residual clinical sensitivity persists, or in cases where medical management does not rely on identifying allergen specificity. Potential false-positive results could occur in patients with markedly elevated serum IgE levels (>2500 kU/L), and test results must be evaluated within the clinical context to avoid confusion due to clinically insignificant sensitivities.
New York Approved
Methodology
Immunoassay (Fluorescence Enzyme Immunoassay (FEIA))
Biomarkers
LOINC Codes
- 7632-3
- 7632-3
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. For more than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL deadspace
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 |