Allergen, Cranberry IgE
Test Mnemonic
CRANBY
CPT Codes
- 86003 - QTY (1)
Aliases
- Bigger cranberry
- Bog cranberry
- Bounceberry
- Craneberry
- Fenne berry
- ImmunoCAP f341
- Marsh whortleberry
- Marshwort
- Small cranberry
- Swamp cranberry
- Vaccinium oxycoccos
- Wild cranberry
Performing Laboratory
ARUP
FDA Category
Analyte Specific Reagent
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Serum | SST (Gold) | Refrigerated | Separate serum from cells ASAP or within 2 hours of collection. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.25 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 48 hours |
| Frozen | 1 year |
| Refrigerated | 2 weeks |
Days Performed
Sun - Sat
Turnaround Time
2 - 4 days
Methodology
| Name | Description |
|---|---|
| Fluorescent Enzyme Immunoassay (FEIA) by ImmunoCAP |
Reference Range
| Cranberry | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| 99 | Normal | < = 0.34 | kU/L |
Special Info
Hemolyzed, icteric, or lipemic specimens will be rejected. This test is New York DOH approved.
Clinical Info
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.