Consensus statement. Consensus statements.
Instead of a quantitative IgE result, the severity of a clinical reaction should be determined by history and/or provocation testing. Strong consensus | Strong consensus |
Reasonable indications for IgE determination are: - reasonable suspicion of IgE-mediated food allergy, - the specific exclusion of an IgE-mediated food allergy, - a life threatening reaction to food, - suspected sensitization to food,which can not be skin tested - conditions that do not allow skin testing or its evaluation (e.g., urticaria factitia, generalized skin disease, administration of drugs that interfere with skin test results), - very young patients (infants or young children), - an expected diagnostic added value of molecular allergy diagnostics |
Strong consensus |
Total IgE should be determined as an aid to interpretation. | Consensus |
For specific questions, IgE diagnostics with single allergens should be used to detect sensitization | Strong consensus |
In vitro diagnostics with single allergens may increase test sensitivity, especially for unstable or underrepresented food allergens | Majority consensus |
Sensitization to defined allergen components (see tables in 4.2) may be associated with systemic allergic reactions. Their determination increases analytical specificity compared to food extracts. | Strong consensus |