Allergen, Tree, Mesquite Tree
Also known as: MESQUITE
Use
The Allergen, Tree, Mesquite Tree test is used to measure the specific IgE antibodies to Mesquite tree pollen, helping to determine if a patient has an allergy to this specific tree allergen. IgE antibody testing can help identify allergic sensitivities in patients presenting with allergy-like symptoms. It provides a way to confirm sensitization as part of a broader allergic evaluation, potentially guiding clinical decisions regarding exposure avoidance, symptom management, and consideration for allergen immunotherapy.
Special Instructions
Separate serum from cells as soon as possible or within 2 hours of collection for accurate testing. When ordering multiple allergen tests, refer to the detailed allergen specimen collection instructions available online. Multiple test orders should be coordinated to ensure sufficient specimen volume and proper handling conditions.
Limitations
Allergen-specific IgE levels, while useful in identifying sensitization, do not always correlate directly with clinical symptoms when exposed to the allergen. Measurements may not correspond with skin test results or predict severity of allergic reactions. Results in the range of 0.10-0.34 kU/L require specialist interpretation as their clinical relevance is undetermined. Negative results do not rule out IgE-mediated allergy or the possibility of anaphylaxis, underscoring the importance of interpreting test results alongside clinical history and in-vivo testing.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Fluorescent Enzyme Immunoassay)
Biomarkers
LOINC Codes
- 6173-9
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
Use a serum separator tube for collection. Separate serum from cells quickly, ideally within 2 hours post-collection.
Patient Preparation
Avoid multiple patient encounters to prevent variability.
Storage Instructions
Refrigerated transport is required to maintain specimen integrity.
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |