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HelpTest ID FFPG4 Food Panel IgG4 (532)
Method Name
ImmunoCAP
Reporting Name
Food Panel IgG4 (532)Specimen 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
0.5 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 |
|
Egg White IgG4 |
<0.15 |
|
Egg Yolk IgG4 |
<0.15 |
|
Milk Cow IgG4 |
<0.15 |
|
Peanut IgG4 |
<0.15 |
|
Soybean IgG4 |
<0.15 |
|
Wheat IgG4 |
<0.15 |
|
Yeast (Saccharomyces cerevisiae) IgG4 |
<0.15 |
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 clearly 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, and to evaluate food allergic patients prior to food challenges. The presence of food-specific IgG4 alone cannot be taken as evidence of food allergy and only indicates immunologic sensitization to the food allergen in question.
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 U. S. Food and Drug Administration.CPT Code Information
86001 x 8