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HelpTest Code LAB74 Immunoglobulin E Level
Clinical System Name
Immunoglobulin E Level
Synonyms
IgE
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST,Gold Microtainer, Red
Preferred Vol: 1.0 mL
Minimum Vol: 0.5 mL
Processing Instructions
Reject due to:
Spin: Y
Aliquot: Y
Temp: -20 C
Storage location: CPA freezer, Fz1 rack
Off-site collection: Spin blood. Transfer serum to aliquot container. Send serum frozen.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| separated serum | Room temp | 2 h |
| Refrigerated | 3 d | |
| Frozen | 6 m |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | M, W, F | 2-4 d |
Contact Chemistry Lab for request outside of stated availability. (206) 987-2565
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem Lab
Phone Number: (206) 987-2617
CPT Codes
82785
Methodology
Method: Chemiluminescence on Siemens Immulite XPI
Analytical Volume: 0.25 mL serum
Limitations: Hemolysis or turbidity may affect results. The drug asfotase alfa (STRENSIQ), a recombinant form of alkaline phosphatase, is expected to interfere with this assay, as this assay utilizes an alkaline phosphatase detection system.
Reference Range
| Age | IU/mL |
|---|---|
| 0 - 12 months | < 12 |
| 1 -3 years | <90 |
| 4 - 10 years | <163 |
| 11 yr - Adult | <398 |