Test Overview
Test Methodology

Fluorescence Enzyme Immunoassay (FEIA)

Test Usage

Testing for IgE antibodies may be useful to establish the diagnosis of an allergic disease and to define the allergens responsible for eliciting signs and symptoms.

Reference Range *

Class 0: <0.35 Negative; Class 1: 0.35-0.69 Equivocal; Class 2: 0.70-3.49 Positive; Class 3: 3.50-17.4 Positive; Class 4: 17.5-49.9 Strongly positive; Class 5: 50.0-99.9 Strongly positive; Class 6: > or =100 Strongly positive

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Saturday
Analytic Time

2 - 3 days

Soft Order Code
Reference Laboratory
Mayo (MOUS)
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in SST or red top tube. Spin and aliquot serum into a screw capped plastic tube. Send to Specimen Processing refrigerated

Normal Volume
0.5 mL for every 5 allergens requested
Minimum Volume
1 allergen 0.3 mL
Storage Temperature
Refrige preferred, frozen acceptable
Additional Information

Test performed by Mayo Clinic Laboratories

CPT Code