Allergen-Specific Immunoglobulin E

General

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 LevelkU/L
Absent or undetectable allergyLess than 0.35
Low allergy0.35–0.7
Moderate allergy0.71–3.5
High allergy3.51–17.5
Very high allergy17.6–50
Very high allergy51–100
Very high allergyGreater than 100

Critical Findings and Potential Interventions
N/A

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