Hazelnut-Food, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to hazelnut by identifying specific IgE antibodies that may be responsible for allergic responses and/or anaphylactic episodes. It can also be used to confirm sensitization before starting immunotherapy and to investigate the specificity of allergic reactions to various allergens, such as insect venom allergens, drugs, or chemical allergens. It is not suitable for patients who have already been treated with immunotherapy or where identifying allergen specificity does not affect medical management.
Special Instructions
For patients not ordering electronically, an Allergen Test Request form (T236) should be completed, printed, and sent with the specimen. The test is available for order in New York State.
Limitations
Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists. False-positive results may occur in patients with elevated serum IgE levels due to non-specific binding. Results should always be interpreted within the clinical context because measurable IgE antibodies may sometimes indicate clinically insignificant sensitivity.
New York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6136-6
- 6136-6
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.
Storage Instructions
Refrigerate the specimen. Preferred at 14 days refrigerated. Can also be stored frozen for up to 90 days.
Causes for Rejection
Gross hemolysis and gross lipemia are acceptable but must be advised. No other rejections stated.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |