Allergen, Tree, Pecan (Hickory) Tree
Also known as: PECAN TREE
Use
The ARUP Allergen, Tree, Pecan (Hickory) Tree test measures the level of IgE antibodies specific to pecan tree allergens. It's crucial for diagnosing allergies in individuals who have experienced potential allergic reactions or have unexplained symptoms such as respiratory distress after exposure to this specific allergen. The test helps determine sensitivity and guides clinicians in managing and potentially desensitizing allergic responses.
Special Instructions
Avoid multiple patient encounters and use a serum separator tube. Separate serum from cells promptly, within 2 hours of collection, ensuring proper handling to maintain specimen integrity. Transfer correct volumes to ARUP Standard Transport Tube for shipping.
Limitations
This test quantifies allergen-specific IgE and provides a probability of IgE-mediated clinical reaction. It does not correlate directly with clinical response severity or skin testing outcomes. A negative IgE result does not conclusively rule out allergy or anaphylaxis. It is essential to correlate laboratory results with clinical history and in vivo reactions to the specific allergen for conclusive diagnosis.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Fluorescent Enzyme Immunoassay)
Biomarkers
LOINC Codes
- 6209-1
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.25 mL serum plus 0.1 mL for each additional allergen ordered
Minimum Volume
0.25 mL plus 0.04 mL for each allergen ordered
Container
ARUP Standard Transport Tube
Collection Instructions
Collect serum separator tube. Separate serum from cells ASAP or within 2 hours of collection.
Patient Preparation
Multiple patient encounters should be avoided.
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |