Chestnut Tree, IgE, Serum
Use
This test is useful for establishing the diagnosis of an allergy to chestnut tree and defining the allergen responsible for eliciting signs and symptoms. It aids in identifying allergens responsible for allergic response and/or anaphylactic episode, confirming sensitization prior to beginning immunotherapy, and investigating the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. However, testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or where medical management does not depend upon identification of allergen specificity.
Special Instructions
When ordering electronically, complete and submit the required Allergen Test Request form (T236) with the specimen. For a listing of allergens available for testing, see Allergens - Immunoglobulin E (IgE) Antibodies guide.
Limitations
Some individuals with clinically insignificant sensitivity to allergens may have measurable levels of IgE antibodies in serum. False-positive results for IgE antibodies may occur in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding to allergen solid phases. These results must be interpreted in the clinical context.
New York Approved
Methodology
Immunoassay (Fluorescence Enzyme Immunoassay (FEIA))
Biomarkers
LOINC Codes
- 6069-9
- 6069-9
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.3 mL
Container
Preferred: Serum gel; Acceptable: Red top; Submission: Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Storage Instructions
Refrigerated (preferred) for 14 days; frozen for 90 days.
Causes for Rejection
Gross hemolysis and gross lipemia are accepted.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |