Mountain Cedar, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to mountain cedar and defining the allergen responsible for eliciting signs and symptoms. It helps in identifying allergens responsible for allergic response and/or anaphylactic episodes, and can be used to confirm sensitization prior to beginning immunotherapy or to investigate the specificity of allergic reactions to various allergens such as insect venom, drugs, or chemicals. Testing for IgE antibodies is not useful in patients previously treated with immunotherapy or where identification of allergen specificity is not critical for medical management.
Special Instructions
Ordering guidance is available for a listing of allergens for testing. Necessary forms include the Allergen Test Request form (T236) if not ordering electronically.
Limitations
This test may show some measurable levels of IgE antibodies in individuals with clinically insignificant sensitivity to allergens. Interpretation should be within clinical context, as false-positive results may occur in patients with markedly elevated serum IgE due to nonspecific binding. The test is not useful for determining residual clinical sensitivity post-immunotherapy.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6178-8
- 6178-8
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
Not provided
Container
Serum gel (preferred), Red top (acceptable); submission in Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
None specified for hemolysis or lipemia
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |