Hazelnut Component rCor a 1
Use
The Hazelnut Component rCor a 1 test is used to identify specific IgE antibodies to the minor allergenic component of hazelnut, rCor a 1. This is useful in determining a patient's sensitization to hazelnuts and helps in the management of patients with hazelnut allergy. This test is particularly helpful for those who experience oral allergy syndrome (OAS) as rCor a 1 is homologous to the major birch pollen allergen Bet v 1.
Special Instructions
Not provided.
Limitations
This test does not detect all hazardous allergens associated with hazelnuts; it focuses specifically on rCor a 1. False negatives may occur if IgE levels are below the detection limit. Cross-reactivity with other pollen-related food allergens may affect test results. The results should be interpreted in conjunction with a full clinical assessment and other diagnostic procedures.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
rCor a 1
Protein
LOINC Codes
- 69421-6 - Hazelnut (rCor a) 1 IgE Qn
- 103076-6 - Hazelnut (rCor a) 1 IgE RAST
Result Turnaround Time
3-6 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.5 mL
Container
Red or SST
Collection Instructions
Draw blood in a plain red-top tube(s), serum gel tube is acceptable. Spin down and send 0.5 mL of serum refrigerated in a plastic vial.
Storage Instructions
Refrigerated (preferred), Ambient or Frozen acceptable as per stability guidelines.
Causes for Rejection
Gross lipemia: Reject
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 28 days |
| Refrigerated | 28 days |
| Frozen | 365 days |