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Regional Medical Lab
Test Directory


Walnut Food Allergy IgG

Order Name WALNUT F G
Test Number: 5500483
Revision Date 10/18/2017
Test Name Methodology LOINC Code
Walnut Food Allergy IgG
Enzyme immunoassay (FEIA)  
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.1 mL) Serum Clot Activator SST Room Temperature
Testing Schedule Mon-Fri 
Expected TAT 2-4 Days  
Clinical Use The clinical utility of food-specific IgG tests has not been established. These tests can be used in special clinical situations to select foods for evaluation by diet elimination and challenge in patients who have food-related complaints. It should be recognized that the presence of food-specific IgG alone cannot be taken as evidence of food allergy and only indicates immunologic sensitization by the food allergen in question. This test should only be ordered by physicians who recognize the limitations of the test. The reference range listed on the report is the lower limit of quantitation for the assay. 
Notes Reference Lab: Viracor
Test Code: 143720
Click Here to view information on the Viracor website.
CPT Code(s) 86001
Lab Section Reference Lab