Test Overview
Test Methodology

Thermo Phadia ImmunoCAP System, Fluorescence Enzyme Immunoassay (FEIA)

Test Usage

Walnut allergen component tests are utilized for a more detailed assessment of patients with a suspected walnut allergy. Sensitization to a certain walnut components is strongly associated with risk of a systemic walnut reaction.

Test Details
Days Set Up
Monday - Friday
Analytic Time

8 hours

Soft Order Code
MiChart Code
Walnut IgE Component Panel
Chemical Pathology
Special Chemistry
Specimen Requirements
Collection Instructions

Collect specimen in an SST or red top tube. Centrifuge, aliquot serum into a plastic vial and refrigerate for up to 1 week or freeze for longer storage.

Alternate Specimen
Red top tube
Normal Volume
1.5 mL serum
Minimum Volume
1.0 mL serum
Additional Information

The Walnut Component Panel includes Walnut IgE (WNUT), rJug r1 Walnut IgE (R1WN) and rJug r3 Walnut IgE (R3WN). Each of these components may also be ordered individually.

CPT Code
86003 (WNUT), 86008 x 2 (R1WN, R3WM)
Fee Code
21401, JA031, JA032
6273-7 (WNUT), 81790-8 (R1WN), 81789-0 (R3WN)