Davis's Lab & Diagnostic Tests
Allergen-Specific Immunoglobulin E
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Synonym/Acronym:
Allergen profile, ImmunoCAP specific immunoglobulin E (IgE).
Rationale
To assist in identifying environmental and occupational allergens responsible for causing allergic reactions.
Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.
Normal Findings
Method: Immunoassay or fluorescence enzyme immunoassay (FEIA).
| Immunoassay and ImmunoCAP Scoring Guide (FEIA) | Conventional and SI Units Allergen-Specific IgE |
|---|---|
| Specific IgE Allergen Antibody Level | kU/L |
| Absent or undetectable allergy | Less than 0.35 |
| Low allergy | 0.35–0.7 |
| Moderate allergy | 0.71–3.5 |
| High allergy | 3.51–17.5 |
| Very high allergy | 17.6–50 |
| Very high allergy | 51–100 |
| Very high allergy | Greater than 100 |
Critical Findings and Potential Interventions
N/A
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