White Ash (T15) IgE

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

CPT Codes

Preferred Specimen
1 mL Serum

Minimum Volume
0.5 mL

SST or Red top: Avoid hemolysis. Invert a minimum of 5 times, then allow to clot in an upright position for 30 minutes. Centrifuge the tube for at least 10 minutes. Keep tightly stoppered.

Transport Container
SST (speckled top) tube

Transport Temperature
Refrigerated (preferred)

Specimen Stability
Room Temperature = N/A
Refrigerated = 7 days
Frozen = at least 7 days

Fluorenzyme Immunoassay (FEIA)

Setup Schedule
Monday - Friday

Report Available
1 day

Reference Range
Specific IgE Class kU/L Specific IgE Antibody
0 < 0.10 Absent/Undetectable
0/1 0.10 - 0.34 Very Low Level
1 0.35 - 0.70 Low Level
2 0.71 - 3.50 Moderate Level
3 3.51 - .17.5 High Level
4 17.6 - 50 Very High Level
5 51.0 - 100 Very High Level
6 > 100 Very High Level 

Clinical Significance
For diagnosis of allergic disease. A normal IgE level does not exclude the possible prescence of an allergic disorder.

Performing Laboratory
Compunet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439

Last Updated: January 12, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.