Egg Yolk, IgE, Serum
Use
The Egg Yolk, IgE test is useful for establishing a diagnosis of an allergy to egg yolk, defining the allergen responsible for causing signs and symptoms, and identifying allergens that might be responsible for an allergic response or anaphylactic episode. It can also confirm sensitization prior to immunotherapy and investigate the specificity of allergic reactions to various allergens, including insect venom, drugs, and chemicals. However, it's not useful for evaluating patients previously treated with immunotherapy to determine if residual clinical sensitivity exists, or in cases where the medical management does not rely on allergen specificity.
Special Instructions
Not provided.
Limitations
While the test determines IgE antibodies in serum, false-positive results may occur in individuals with elevated IgE levels due to nonspecific binding. Additionally, some individuals with clinically insignificant sensitivity to allergens may present detectable levels of IgE antibodies, necessitating careful interpretation in the clinical context. Results should always be interpreted alongside clinical history and other diagnostic findings.
FDA ApprovedNew York Approved
Methodology
Immunoassay (FEIA)
Biomarkers
Egg Yolk
Protein
LOINC Codes
- 6107-7 - Egg Yolk IgE Qn
- 6107-7 - Egg Yolk 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 for 1 allergen or (0.05 mL x number of allergens) + 0.25 mL deadspace for more than 1 allergen
Container
Preferred: Serum gel; Acceptable: Red top
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 |