Allergen, Food, Watermelon IgE
0055157
Ordering Recommendation
Mnemonic
WATERME
Methodology
Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
- Patient Preparation
- Multiple patient encounters should be avoided.
- Collect
- Serum separator tube. Multiple specimen tubes should be avoided.
- Specimen Preparation
- Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.25 mL serum plus 0.1 mL for each additional allergen ordered to an ARUP Standard Transport Tube. (Min: 0.25 mL plus 0.04 mL for each allergen ordered)
- Storage/Transport Temperature
- Refrigerated.
- Unacceptable Conditions
- Hemolyzed, icteric, or lipemic specimens.
- Remarks
- Stability
- After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
Reference Interval
Effective 02/18/2014
| Reporting Range (reported in kU/L) | Probability of IgE Mediated Clinical Reaction | Class Scoring |
|---|---|---|
| Less than 0.10 | No significant level detected | 0 |
| 0.10 - 0.34 | Clinical relevance undetermined | 0/1 |
| 0.35 - 0.70 | Low | 1 |
| 0.71 - 3.50 | Moderate | 2 |
| 3.51 - 17.50 | High | 3 |
| 17.51 - 50.00 | Very high | 4 |
| 50.01 - 100.00 | Very high | 5 |
| Greater than 100.00 | Very high | 6 |
Interpretive Data
Allergen results of 0.10-0.34 kU/L are intended for specialist use as the clinical relevance is undetermined. Even though increasing ranges are reflective of increasing concentrations of allergen-specific IgE, these concentrations may not correlate with the degree of clinical response or skin testing results when challenged with a specific allergen. The correlation of allergy laboratory results with clinical history and in vivo reactivity to specific allergens is essential. A negative test may not rule out clinical allergy or even anaphylaxis.
Compliance Statement A: For laboratory developed tests using a manufacturer labeled ASR as the reagent providing the specificity of the assay. Analyte Specific Reagent. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, the FDA has determined that such clearance or approval is not necessary.
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0055157 | Allergen, Food, Watermelon IgE | 7770-1 |
Aliases
- Citrullus lanatus
- Citrullus vulgaris
- ImmunoCAP f329