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Rudi, an 8-year old boy with a history of rhino-conjunctivitis during tree pollen season and asthma exacerbations during infections and exertion, sees his healthcare provider because he is now also experiencing itching in the mouth when eating hazelnuts. His mother is sensitized to tree nuts and is worried that Rudi is, too.
His healthcare provider conducts a full clinical history and physical examination and decides to test using specific IgE testing.
See how specific IgE blood testing helped Rudi determine his risk of severe reaction to peanut and tree nuts.
Tree pollen, peanut, tree nut, and pet dander allergy.
Based on history, evaluation, and testing, his previous healthcare provider recommended that Rudi strictly avoid peanut and tree nuts and use oral antihistamines during tree pollen season, as well as symptomatic treatment with inhalant long-acting ß2-agonists and corticosteroids.
These results, together with Rudi’s case history and symptoms, may help his healthcare provider confirm the diagnosis.
Based on these results you decide to perform testing with allergen components.
Rudi’s sensitization to the peanut storage protein Ara h 2 shows that he has an increased risk for severe reactions if eating peanuts.2 Strict avoidance of peanut is therefore recommended. With components, this risk could have been revealed before any reaction occurred.
Rudi’s birch allergy gives rise to cross-reactivity with the PR-10 protein Cor a 1 in hazelnut, and the itching in Rudi’s mouth when eating hazelnuts may originate from the pollen-food allergy.1
Rudi’s sensitization to birch pollen is confirmed, continue with current medication.
HEALTHCARE PROVIDER MANAGEMENT PLAN
The people, places, and events depicted in these case studies and photographs do not represent actual patients, nor are they affiliated in any way with Thermo Fisher Scientific.