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Peanut and Tree Nut Cross-Reactivity — RACP Paediatrics MCQ

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ModerateGastroenterologyPeanut and Tree Nut Cross-ReactivityRACP Paediatrics

A child has a confirmed peanut allergy. His parents ask about risk of allergy to tree nuts. What is the advice?

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Correct answer: E — Approximately 30-40% of peanut-allergic children are also allergic to one or more tree nuts; formal allergy testing is recommended

Peanut (legume) and tree nut allergies commonly co-exist. Formal assessment by an allergist with SPT/specific IgE for individual tree nuts is recommended.

Reference: ASCIA – 2024 – Peanut and Tree Nut Allergy