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HelpTest Code Allergen-IgE Antibody, Blood Allergen-IgE Antibody, Blood
Performing Laboratory
St. Louis Children's Hospital
Methodology
Fluorescence Enzyme Immunoassay (FEIA)
Specimen Requirements
Specimen Type: Blood
Container/Tube:
Preferred: Gold/Red SST Vacutainer
Acceptable: Plain, red-top Vacutainer®
Collection Volume: 3.0 mL
Minimum volume required is dependent on number of allergens requested. Minimum for just one allergen is 0.6 mL with an additional 0.1 mL required for each additional allergen requested.
Patient Preparation: None
Sample Rejection: Mislabeled or unlabeled specimens.
Reference Values
Reference Range:
| Class | IgE kU/L | Interpretation |
| 0 | <0.35 | Negative |
| 1 | 0.35-0.69 | Equivocal |
| 2 | 0.70-3.49 | Positive |
| 3 | 3.50-17.4 | Positive |
| 4 | 17.5-49.9 | Strongly positive |
| 5 | 50.0-99.9 | Strongly positive |
| 6 | ≥100 | Strongly positive |
Reference values apply to all ages.
Critical Values: None established
CPT Coding
86003
Day(s) Test Set Up
Monday-Friday
Specimen Transport Temperature
Refrigerated