Egg Yolk IgG
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.
Special Instructions
Reference ranges have not been established for food-specific IgG tests.
Limitations
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. The clinical utility of food-specific IgG tests has not been established. These tests should only be used by physicians who understand their limitations.
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 35536-2
- 35536-2
Result Turnaround Time
5-9 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
Not provided
Container
Red Top (preferred), Serum gel (acceptable)
Collection Instructions
Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable. Centrifuge and aliquot 0.5 mL of serum in a plastic vial. Send refrigerate.
Causes for Rejection
Cold OK; Warm OK
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 28 days |
| Frozen | 365 days |