White Bean, IgE, Serum
Use
The test is useful for diagnosing an allergy to white bean and determining the specific allergen responsible for allergic reactions. This test helps identify allergens that cause allergic response and anaphylactic episodes, ascertain sensitization before starting immunotherapy, and investigate the specificity of allergic reactions to various allergens. It provides indications of immune response associated with allergic disease by measuring IgE antibodies in vitro. The sequence of sensitization and clinical manifestations often starts with food sensitivity in infants and children, progressing to sensitivity to inhalant allergens in older children and adults.
Special Instructions
Not provided.
Limitations
Testing for IgE antibodies is not useful in previously immunotherapy-treated patients to check for residual sensitivity or when medical management doesn't require allergen identification. False positives may occur in patients with significantly elevated IgE levels due to nonspecific binding. Interpreting results requires clinical context as some individuals with insignificant sensitivities might show measurable IgE levels.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
White Bean, IgE
Analyte
LOINC Codes
- 6279-4 - White Bean IgE Qn
- 6279-4 - White Bean 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
None specified for gross hemolysis and lipemia
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 14 days |
| Frozen | 90 days |