Allergen-Specific Immunoglobulin E

General

Synonym/Acronym:
allergen profile, allergen 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: Fluorescence enzyme immunoassay (FEIA).

InterpretationConventional and SI Units Allergen-Specific IgE
Specific IgE Allergen Antibody Level kU/L
NegativeLess than 0.1
Borderline0.1–0.34
Equivocal0.35–0.69
Positive0.7–3.49
Positive3.5–17.4
Strongly positive17.5–49.9
Strongly positive50–99.9
Strongly positiveGreater than or equal to 100
Nasal Smear
Less than 10% to 15% eosinophils is considered normal

Critical Findings and Potential Interventions
N/A

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