Oak, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to oak and defining the allergen responsible for eliciting signs and symptoms. It aids in identifying allergens responsible for allergic responses and/or anaphylactic episodes. The test is also used to confirm sensitization prior to beginning immunotherapy and investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens.
Special Instructions
For a listing of allergens available for testing, refer to the Allergens - Immunoglobulin E (IgE) Antibodies PDF. If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen.
Limitations
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. False positives may occur in patients with markedly elevated serum IgE due to nonspecific binding. The test must be interpreted in the clinical context as some individuals with clinically insignificant sensitivity may have measurable IgE levels.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6189-5
- 6189-5
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
Not provided
Minimum Volume
0.3 mL for 1 allergen, more than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL deadspace
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
None listed, gross hemolysis and gross lipemia are acceptable.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |