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Nut allergy cross reactivity chart1/3/2024 ![]() If an epinephrine auto-injector has been used, always seek emergency medical assistance immediately. This is in case one misfires or if symptoms return and a second dose is needed. It is recommended to always carry at least two (2) epinephrine auto-injectors at all times if you have been diagnosed with a tree nut allergy. Delay in administering epinephrine for anaphylactic reactions to tree nut has been associated with deaths. Tree nut allergies account for the majority of IgE-mediated reactions in teenager and adult reactions. ![]() Tree nut prevalence rates in the United States are approximately 1% percent. These are all issues that should be discussed with your board-certified allergist, since no universal rule is likely to apply to all tree nut allergic patients. In some cases where the tree nut allergic individual may tolerate selected tree nuts and not others, there is concern for possible cross-contamination due to co-processing of tree nuts by manufacturers. Oral food challenges may be useful to rule in or rule out if these nuts are safe to consume. However, all of these recognitions may not result in an allergic reaction. Because tree nuts have very similar structures, allergen tests may reveal multiple positive recognitions. ![]() It is recommended that individuals see a board-certified allergist to discuss the need to avoid peanut due to a tree nut allergy, as well as the need to avoid all tree nuts. Additionally, there is some small risk of cross-reactivity with peanut, even though peanuts are actually a legume and not a tree nut. Tree nut allergy often have a cross-reactivity with other different types of tree nuts. Tree nut allergy is generally considered to be lifelong and is outgrown by approximately 10%. Tree nuts are one of the 9 most common food allergens. ![]()
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