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 vivoreactivity to specific allergens is essential. A negative test may not rule out clinical allergy or even anaphylaxis.
Compliance Statement A: Analyte specific reagents (ASR) are used in many laboratory tests necessary for standard medical care and generally do not require U.S. Food and Drug Administration (FDA) approval or clearance. 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, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. This test should not be regarded as investigational or for research use.
Note
CPT Code(s)
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0055157 | Allergen, Food, Watermelon IgE | 7770-1 |
Aliases
- Citrullus lanatus
- Citrullus vulgaris
- ImmunoCAP f329