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HelpTest ID FWALG Walnut Food (Juglans spp) IgG
Method Name
Enzyme Immunoassay (FEIA)
Reporting Name
Walnut Food (Juglans spp) IgGSpecimen Type
SerumDraw blood in a plain red-top tube(s), serum gel tube(s) is acceptable. Spin down and send 0.5 mL of serum refrigerated in a plastic vial.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 28 days |
| Frozen | 365 days | |
| Ambient | 7 days |
Reference Values
<2 mcg/mL
The reference range listed on the report is the lower limit of quantitation for the assay. 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.
Day(s) Performed
Monday through Friday
Report Available
3 daysPerforming Laboratory
Viracor-IBT LaboratoriesTest Classification
This test was developed and its performance characteristics determined by Viracor-IBT Laboratories. It has not been cleared or approved by the FDA.CPT Code Information
86001