Elm, IgE, Serum
Use
Establishing a diagnosis of an allergy to elm by defining the allergen responsible for eliciting signs and symptoms. This test identifies allergens responsible for allergic responses and anaphylactic episodes, confirms sensitization before immunotherapy, and investigates the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. The results provide an indication of the immune response to allergens that could be associated with allergic disease.
Special Instructions
Not provided.
Limitations
Testing for IgE antibodies may not be useful in individuals treated with immunotherapy to assess for residual clinical sensitivity. Results must be interpreted with caution as false positives can occur in patients with very high serum IgE levels due to nonspecific binding. It is essential to consider the clinical context as some individuals may exhibit IgE antibodies yet have clinically insignificant sensitivity to allergens.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
Elm IgE
Protein
LOINC Codes
- 6109-3 - White Elm IgE Qn
- 6109-3 - White Elm 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
For 1 allergen: 0.3 mL; For more than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL deadspace
Container
Preferred: Serum gel; Acceptable: Red top; Submission: Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis OK; Gross lipemia OK
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |