Immunoglobulin E (IgE), Specific
Test Code
SIGE
Description
Specific IgE is an in-vitro immunologic test for the quantitative measurement of IgE in human serum that recognizes specific allergens such as food, pollen or animal dander. Measurement of circulating specific IgE antibodies provides an objective assessment of sensitization to an allergen. In general, low IgE antibody levels indicate a low probability of clinical disease, whereas high antibody levels to an allergen show good correlation with clinical disease.
Collect
Plain red top or SST tube.
Patient Prep
N/A
Pediatric Collection
Minimum volume: 0.5 mL
Unacceptable Conditions
Samples maintained at room temperature >48 hours, samples maintained refrigerated >14 days.
Storage Transport Temp
Offsite: Send serum Priority Overnight via FedEx and in a well insulated container at ambient temperature, with an ice pack or frozen on dry ice.
Stability
2 days ambient (18-23C), 2 week refrigerated (2-8C), 6 months frozen (-20C). One freeze-thaw cycle will not negatively affect testing.
Notes
Please click on the link below to be directed to the current ThermoFisher Phadia ImmunoCAP catalogue;
www.thermofisher.com/phadia/wo/en/product-catalog.html?region=US&solution=ImmunoCAP
Performed
Weekdays
Methodology
ImmunoCAP
Turnaround Time
48 hours
Department
ImmunoCAP
Synonyms
RAST, Immunofluorescence
Study Offerings
RUO
CAP/CLIA
Reference Interval
- Class 0 = <0.1
- Class 0/1 = 0.1-0.35
- Class 1 = 0.36-0.69
- Class 2 = 0.70-3.49
- Class 3 = 3.50-17.4
- Class 4 = 17.5-49.9
- Class 5 = 50-100
- Class 6 = >100
CPT Code
86003
New York Approved
FDA Approved or Cleared
FDA
Approved or Cleared