Bean Green/String IgG
Use
The test is used in special clinical situations to select foods for evaluation by diet elimination and challenge in patients with food-related complaints. The presence of food-specific IgG indicates immunologic sensitization to the food allergen but does not confirm food allergy.
Special Instructions
This test should only be ordered by physicians who understand the limitations. Reference ranges have not been established for food-specific IgG tests.
Limitations
The clinical utility of food-specific IgG tests has not been established. It should not be used as sole evidence of food allergy but can be a component in dietary evaluation.
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 60353-0
- 60353-0
Result Turnaround Time
5-7 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.5 mL
Container
Red Top
Collection Instructions
Draw 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.
Causes for Rejection
Warm OK; Cold OK
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 28 days |
| Frozen | 365 days |