Laboratory Medicine

Test catalogue

Immunoglobulin E (IgE)
Test Name Immunoglobulin E (IgE)
Specimen Type / Requirements Container Type = 1 Gold Top (SST) Minimum Testing Volume = 500uL serum Tube must fill to at least ½ or greater of its vacuum capacity Acceptable alternative matrix: Serum (Red top), Plasma (EDTA, Li Heparin)
Specimen Handling Collection instructions: Collect specimen in gold or red top tube. • For patient with biotin therapy (>5 mg/d), samples must be collected until 8 hours following last dose. Ensure collection date and time is provided. Lab Staff Instructions Separate from cells within 2 hours of collection. Do not use samples that have been stored at room temperature for longer than 8 hours. Rejection Criteria Multiple freeze/thaw unacceptable, grossly hemolyzed, Unlabeled or Not Sufficient Quantity Samples will be rejected. Stability: Stable at room temperature and Refrigerated for 7 days, and frozen at -20°C: up to 6 months (may be frozen up to 5x). Transportation: Send sample to core lab as soon as possible.
Required Documentation
Turnaround Time 7 days	Test Utilization Once
Reference Value 0 up to 29 days: - ≤ 2 IU/mL 29 days up to 1 year: - ≤ 15 IU/mL 1 year up to 5 years: - ≤ 60 IU/mL 5 years up to 9 years: - ≤ 90 IU/mL 9 years up to 15 years: - ≤ 200 IU/mL 15 years up to unspecified: - ≤ 100 IU/mL
Test code LAB74	Methodology Electrochemiluminescence Immunoassay (ECLIA)
Testing Location SMH-Biochemistry	Other Information Last Updated: August 22, 2025

Immunoglobulin E (IgE)

Test Name

Immunoglobulin E (IgE)

Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Testing Volume = 500uL serum

Tube must fill to at least ½ or greater of its vacuum capacity

Acceptable alternative matrix: Serum (Red top), Plasma (EDTA, Li Heparin)

Specimen Handling

Collection instructions: Collect specimen in gold or red top tube. • For patient with biotin therapy (>5 mg/d), samples must be collected until 8 hours following last dose. Ensure collection date and time is provided.

Lab Staff Instructions Separate from cells within 2 hours of collection. Do not use samples that have been stored at room temperature for longer than 8 hours.

Rejection Criteria Multiple freeze/thaw unacceptable, grossly hemolyzed, Unlabeled or Not Sufficient Quantity Samples will be rejected.

Stability: Stable at room temperature and Refrigerated for 7 days, and frozen at -20°C: up to 6 months (may be frozen up to 5x).

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time

7 days

Test Utilization

Once

Reference Value

0 up to 29 days: - ≤ 2 IU/mL

29 days up to 1 year: - ≤ 15 IU/mL

1 year up to 5 years: - ≤ 60 IU/mL

5 years up to 9 years: - ≤ 90 IU/mL

9 years up to 15 years: - ≤ 200 IU/mL

15 years up to unspecified: - ≤ 100 IU/mL

Test code

LAB74

Methodology

Electrochemiluminescence Immunoassay (ECLIA)

Testing Location

SMH-Biochemistry

Other Information

Last Updated: August 22, 2025