Canary Grass, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to canary grass and defining the allergen responsible for eliciting signs and symptoms. It helps in identifying allergens responsible for allergic response and/or anaphylactic episodes, and it can confirm sensitization prior to beginning immunotherapy. It is also used to investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. However, testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in patients where the medical management does not depend upon the identification of allergen specificity.
Special Instructions
Not provided.
Limitations
Some individuals with clinically insignificant sensitivity to allergens may have measurable levels of IgE antibodies in serum, and results must be interpreted in the clinical context. False-positive results for IgE antibodies can occur in patients with markedly elevated serum IgE due to nonspecific binding to allergen solid phases. Testing for IgE antibodies is not suitable for determining residual clinical sensitivity in patients previously treated with immunotherapy.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6058-2 - Canary grass IgE Qn
- 6058-2 - Canary grass IgE Qn
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
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis okay; Gross lipemia okay.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |