Allergen, Tree, Oak Tree
Also known as: OAK
Use
The clinical significance of the Allergen, Tree, Oak Tree test lies in its ability to quantitatively measure the concentration of allergen-specific IgE antibodies in the serum, helping to identify potential sensitization to oak tree allergens. This information aids healthcare providers in correlating allergy test results with clinical history and potential allergic reactions or in vivo reactivity to oak tree allergens. Elevated levels of oak tree-specific IgE can suggest sensitization, which, when combined with clinical evaluation, may guide the management and treatment of allergic disorders.
Special Instructions
For the Allergen, Tree, Oak Tree test, it is important to adhere to the specimen collection and handling instructions. Multiple patient encounters should be avoided, and serum should be separated from cells as soon as possible or within two hours of collection. For multiple allergen orders, reference ARUP's 'Allergen Specimen Collection Instructions' online.
Limitations
The test results for the Allergen, Tree, Oak Tree may not correlate with the degree of clinical response or outcomes of skin testing when challenged with the allergen. Results showing 0.10-0.34 kU/L are for specialist use, as the clinical significance is undetermined. Furthermore, a negative test result does not rule out clinical allergy or the potential for anaphylaxis. It is essential to correlate laboratory results with clinical evaluations and histories. Results reflect concentrations of specific IgE antibodies but may not directly indicate clinical severity or reactivity intensity.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Fluorescent Enzyme Immunoassay)
Biomarkers
LOINC Codes
- 6189-5
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.25 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Collect blood in a serum separator tube. Separate serum from cells ASAP or within 2 hours of collection.
Patient Preparation
Multiple patient encounters should be avoided.
Storage Instructions
Refrigerated storage for transport.
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |