Test Directory

Test Code
PEC4
Test Name
Pecan IgG4
CPT Codes
86001
Expected Turnaround Time
3 - 4 days
Clinical Utility

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.

Specimen and Container Info

Specimen Type: Serum

Collection Container: Red Top, Plain

Desired Specimen Volume: 0.5 mL

Collection Instructions
  1. Collect a red top, plain tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 0.5 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to the laboratory refrigerated. 

Stability Requirements

Room Temperature

7 days

Refrigerated

28 days

Frozen

>4 weeks
Methodology
Enzyme Immunoassay
Reference Intervals

 See patient report.

Alternate Names
  •  Pecan Food IgG
Reference Lab
Viracor Eurofins
Testing Schedule
Varies