Allergen, Food, Orris Root IgE
Also known as: ORRIS
Use
Measurement of IgE antibodies specific to orris root to aid in the evaluation of food sensitization in patients being assessed for allergic reactions. As the assay is quantitative, results can inform clinical correlation with symptoms, though interpretation should be made alongside patient history and, if appropriate, in vivo testing. This assay is performed at an external laboratory, not within ARUP.
Special Instructions
Not provided.
Limitations
Specimens that are hemolyzed, icteric, or lipemic are unacceptable. Clinical relevance correlates with presence of specific IgE but may not predict reaction severity; interpret in the context of patient history. The test is not performed at ARUP, which may influence turnaround time variability.
New York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
Orris Root IgE
Protein
LOINC Codes
- 7555-6 - Orris root IgE Qn
Result Turnaround Time
3-6 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL serum plus 0.1 mL for each additional allergen ordered
Minimum Volume
Min: 0.34 mL plus 0.04 mL for each allergen ordered
Container
Plain red or serum separator tube (SST)
Collection Instructions
Separate serum from cells ASAP or within 2 hours of collection. Transfer to ARUP standard transport tube.
Patient Preparation
N/A
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 1 month |
| Refrigerated | 1 month |
| Frozen | 1 year |
Other tests from different labs that may be relevant