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
Synonyms
    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.

    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