Oat, IgE, Serum
Use
Establishing a diagnosis of an allergy to oat, defining the allergen responsible for eliciting signs and symptoms, and identifying allergens responsible for allergic responses and/or anaphylactic episodes. It is useful for confirming sensitization prior to starting immunotherapy and investigating the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens.
Special Instructions
If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen. For a listing of allergens available for testing, refer to the Allergens - Immunoglobulin E (IgE) Antibodies document.
Limitations
Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in patients where medical management does not change based on allergen identification. False-positive results may occur in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding.
New York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6190-3
- 6190-3
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL for every 5 allergens requested
Minimum Volume
(0.05 mL x number of allergens) + 0.25 mL deadspace
Container
Serum gel (preferred), red top (acceptable); plastic vial for submission
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis/gross lipemia: OK
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |