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

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

Test Details
Days Set Up
Monday - Friday
Analytic Time

2 - 4 days

Soft Order Code
FESE
MiChart Code
FESE
Laboratory
Sendout
Reference Laboratory
Mayo (FESE)
Section
Special Testing
Specimen Requirements
Collection Instructions

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

Yellow Top Tube
Red Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
For 1 allergen: 0.3 mL; For more than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL dead space
Additional Information

Test performed by Mayo Clinic Labs

Billing
CPT Code
86003
Fee Code
AA565
LOINC
10929-8
NY State Approved
No
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