F209-IgE Grapefruit
Use
The IgE grapefruit test measures the specific IgE antibodies to grapefruit in the patient's serum. This test is used to assess possible allergic reactions to grapefruit, which can manifest in symptoms such as itching, hives, or anaphylaxis upon consumption of the fruit. It helps in the diagnostic evaluation of patients with suspected food allergies, providing valuable information for allergists to guide dietary recommendations and treatment strategies.
Special Instructions
Not provided.
Limitations
The IgE grapefruit test is specific to grapefruit and does not assess allergies to other citrus fruits or food groups. Cross-reactivity with other allergens is not evaluated, potentially leading to misleading results if other allergies are present. Interpretation should be made in conjunction with clinical symptoms and history, as elevated IgE levels might not directly correlate with clinical allergy symptoms. A negative result does not conclusively exclude a grapefruit allergy, and further testing or an oral food challenge might be needed if clinical suspicion persists.
Methodology
Immunoassay (Thermo Fisher ImmunoCAP®)
Biomarkers
IgE Grapefruit
Analyte
LOINC Codes
- 6131-7 - Grapefruit IgE Qn
- 6131-7 - Grapefruit IgE Qn
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
Not provided
Container
One 8.5 mL red-top tube or one 8.5 mL gel-barrier tube
Storage Instructions
Room temperature
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 3 months |
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