Cinnamon, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to cinnamon and defining the allergen responsible for eliciting signs and symptoms. It helps in identifying allergens responsible for allergic response and/or anaphylactic episodes. The test can also confirm sensitization prior to starting immunotherapy and investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. Testing for IgE antibodies provides an indication of the immune response to allergens that may be associated with allergic disease.
Special Instructions
If not ordering electronically, complete, print, and send an Allergen Test Request form (T236) with the specimen. The preferred container for collection is a serum gel tube, and an acceptable alternative is a red top tube. Specimens should be centrifuged and serum aliquoted into a plastic vial for submission.
Limitations
Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in patients whose medical management does not depend upon identification of allergen specificity. Some individuals with clinically insignificant sensitivity may have measurable levels of IgE antibodies, leading to potential false positives, especially with elevated serum IgE levels (>2500 kU/L) due to nonspecific binding.
New York Approved
Methodology
Immunoassay (Fluorescence Enzyme Immunoassay (FEIA))
Biomarkers
LOINC Codes
- 6837-9
- 6837-9
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
0.3 mL for 1 allergen
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis is acceptable, as is gross lipemia.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |