Trichophyton rubrum, IgE, Serum
Use
This test is useful for establishing a diagnosis of an allergy to Trichophyton rubrum. It helps in defining the allergen responsible for eliciting signs and symptoms and identifying allergens responsible for allergic responses, anaphylactic episodes, or confirming sensitization prior to immunotherapy. The test is not useful in patients previously treated with immunotherapy to determine residual clinical sensitivity.
Special Instructions
For more than one allergen requested, adjust specimen volume accordingly. Ensure to complete the Allergen Test Request form if ordering non-electronically.
Limitations
Testing for IgE antibodies may not be useful in patients whose medical management does not depend on identification of allergen specificity. False-positive results for IgE antibodies may occur in patients with markedly elevated serum IgE (>2500 kU/L) due to nonspecific binding to allergen solid phases. Clinical context is essential when interpreting results.
New York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
LOINC Codes
- 6860-1
- 6860-1
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
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 |