Peach, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to peach by defining the allergen responsible for eliciting allergic signs and symptoms. It helps in identifying allergens responsible for allergic responses or anaphylactic episodes, confirming sensitization prior to immunotherapy, and investigating specificity of allergic reactions to various allergens. However, it is not useful for determining residual clinical sensitivity post-immunotherapy or in cases where allergen specificity is not crucial for medical management.
Special Instructions
For an extensive list of allergens available for testing, refer to the Allergens - Immunoglobulin E (IgE) Antibodies document. When not ordering electronically, complete and send an Allergen Test Request form (T236) with the specimen.
Limitations
Some individuals may exhibit measurable levels of IgE antibodies despite clinically insignificant sensitivity, which must be interpreted contextually. Additionally, false-positive results can occur in patients with significantly elevated serum IgE due to nonspecific binding. Testing IgE antibodies in patients post-immunotherapy is not effective for monitoring residual sensitivity.
New York Approved
Methodology
Immunoassay (Fluorescence Enzyme Immunoassay (FEIA))
Biomarkers
LOINC Codes
- 6205-9
- 6205-9
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
Preferred: Serum gel; Acceptable: Red top; Submission: Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Specimen viable: Gross hemolysis (OK), Gross lipemia (OK).
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |