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Cerner Order Name IgE Immunoglobulin E (IgE), Blood

Performing Laboratory

St. Louis Children's Hospital

Lab Dept

Core Lab Chemistry

Specimen Requirements

Specimen Type: Blood

Container/Tube

Preferred: Light green-top (lithium heparin) Vacutainer®

Acceptable: green SAMPLETTE™/MICROTAINER®, plain red-top vacutainer ® or Gold/Red SST gel vacutainer®

Collection Volume: 1.0 mL (minimum 0.6 mL)

Patient Preparation: None

Sample Rejection: Mislabeled or unlabeled specimens.

Special Instructions: Send to lab promptly.

Logistics

Test Availability: Monday-Sunday

Cut-off time: None; performed as received

Turnaround Time: Same day; 2 hours from receipt in lab
Lab Testing Section: Chemistry

Interpretive

Reference Range:

< 1 year: <50.0 IUnits/mL

1 year - 3 years: <100.0 IUnits/mL

3 years - 5 years: <300.0 IUnits/mL

5 years - 8 years: <400.0 IUnits/mL

8 years - 16 years: <600.0 IUnits/mL

16 years - 18 years: <500.0 IUnits/mL

≥ 18 years: <100.0 IUnits/ML

Critical Values: No critical values established

Limitations: In rare cases, interference due to extremely high titers of antibodies to analyte-specific antibodies (such as HAMA), streptavidin or ruthenuim can occur.

Methodology: Electrochemiluminescence immunoassay (ECLIA) sandwich principle

Additional Information

For SLCH Laboratory use only

Lab Processing instructions: Centrifuge specimen to separate. If specimen is collected in microtainer or plain, red-top tube aliquot sample into a conical tube for testing (labeling aliquot with specimen type).

Processed Volume: minimum 0.3 mL plasma/serum

Analyte Stability:

Ambient - unprocessed: 8 hours

PROCESSED

Ambient: 8 hours

Refrigerated: 7 days

Frozen: 6 months

Notes: Will also accept Lavender-top (EDTA) Vacutainer®

General Information

EPIC order name: IgE  (EPIC Test# LAB74)

Cerner order name: IgE

CPT Codes: 82785

LOINC Value: 19133-0

Synonyms:

Last Reviewed

November 2024