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HelpTest ID FG4FP IgG4 Food Panel VIII
Method Name
ImmunoCAP FEIA
Reporting Name
IgG4 Food Panel VIIISpecimen Type
SerumDraw blood in a plain red-top tube(s), serum gel tube(s) is acceptable. Spin down and send 1 mL of serum refrigerated in a plastic vial.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 28 days |
| Frozen | 365 days | |
| Ambient | 7 days |
Reference Values
Corn IgG4 <0.15 mcg/mL
Egg White IgG4 <0.15 mcg/mL
Milk Cow IgG4 <0.15 mcg/mL
Peanut IgG4 <0.15 mcg/mL
Soybean IgG4 <0.15 mcg/mL
Wheat IgG4 <0.15 mcg/mL
The reference range listed on the report is the lower limit of quantitation for the assay. The clinical utility of food-specific IgG4 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 IgG4 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
2 - 3 daysPerforming Laboratory
Viracor-IBT LaboratoriesTest Classification
This test was developed and its performance characteristics determined by Viracor-IBT Laboratory. It has not been cleared or approved by the FDA.CPT Code Information
86001 x 6