Laboratory Medicine

Test catalogue

Immunoglobulin E (IgE)
Test Name Immunoglobulin E (IgE)
Specimen Type / Requirements Container Type = 1 Gold Top (SST) Minimum Testing Volume = 0.5 mL 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. Rejection Criteria Grossly hemolyzed, Unlabeled or Not Sufficient Quantity Samples will be rejected. Stability: Stable at room temperature for 7 days, refrigerated for 7 days and frozen for 6 months. Maximum 5 freeze-thaw cycles. Transportation: Send sample to core lab as soon as possible.
Required Documentation
Turnaround Time 7 days	Test Utilization N/A
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: June 22, 2026

Immunoglobulin E (IgE)

Test Name

Immunoglobulin E (IgE)

Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Testing Volume = 0.5 mL

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.

Rejection Criteria Grossly hemolyzed, Unlabeled or Not Sufficient Quantity Samples will be rejected.

Stability: Stable at room temperature for 7 days, refrigerated for 7 days and frozen for 6 months. Maximum 5 freeze-thaw cycles.

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

Required Documentation

Turnaround Time

7 days

Test Utilization

N/A

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: June 22, 2026