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.

Testing also may be useful to identify allergens which may be responsible for allergic disease and/or anaphylactic episode, to confirm sensitization to particular allergens prior to beginning immunotherapy, and to investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens.

Reference Range *

Interpretive report provided.

* 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 - 4 days

Soft Order Code
  • White Ash IgE
  • Timothy Grass IgE
  • Mountain Cedar IgE
  • Cat Epithelium IgE
  • Boxelder-Maple IgE
  • Silver Birch IgE
  • Bermuda Grass IgE
  • Aspergillus Fumigatus IgE
  • Immunoglobulin E
  • Cottonwood IgE
  • Short Ragweed IgE
  • Penicillium chrysogenum IgE
  • Oak IgE
  • Nettle IgE
  • Mulberry IgE
  • Rough Marsh Elder IgE
  • Elm IgE
  • House Dust Mites/D.P. IgE
  • Dog Dander IgE
  • Russian Thistle IgE
  • House Dust Mites/D.F. IgE
  • Alternaria Tenuis IgE
  • Cockroach IgE
  • Cladosporium IgE
Reference Laboratory
Mayo RPR7
Special Testing
Specimen Requirements
Collection Instructions

Collet specimen in an SST or Red top tube. Centrifuge, aliquot serum into a screw capped plastic tube, and refrigerate.

Normal Volume
1.7 mL serum
Minimum Volume
1.5 mL serum
Additional Information

Test sent to Mayo Clinic Laboratories.

CPT Code
86003 x23, 82785
Fee Code
AA045, AA163, AA405, AA406, AA407, AA829, AA854, AB027, AB028, AB029, AB030, AB031, AB032, AB033, AB034, AB035, AB036, AB037, AB038, AB039, AB040, AB041, AB042, AA394