Allergen, Food, Watermelon IgE
Also known as: WATERME
Use
This test quantitatively evaluates the presence of IgE antibodies specific to watermelon allergen. It assists in assessing potential IgE-mediated allergic reactions to watermelon, with results indicating different levels of risk for clinical reactions. Healthcare providers should correlate laboratory results with clinical history and in vivo reactivity to establish a comprehensive diagnosis.
Special Instructions
Avoid multiple patient encounters during specimen collection. Ensure immediate separation of serum from cells, ideally within 2 hours of collection, for accurate results. Follow ARUP's standard procedures for allergen testing involving serum collection.
Limitations
Results in the range of 0.10-0.34 kU/L are for specialist use due to undetermined clinical relevance. Allergen-specific IgE concentrations may not directly correlate with clinical response severity or skin test results. Negative tests do not rule out the possibility of allergies or anaphylaxis. Interpretation should be combined with clinical evaluation.
New York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
LOINC Codes
- 7770-1
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 serum separator tube. Separate serum from cells ASAP or within 2 hours.
Patient Preparation
Multiple patient encounters should be avoided.
Storage Instructions
Refrigerated.
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |