Do you reflexively test for tree nut allergies when you diagnose a peanut allergy?

My decision to test tree nuts when a patient is diagnosed with a peanut allergy depends on multiple factors. In the past, children diagnosed with a peanut allergy were told to avoid all tree nuts due to the risk of co-existent allergy. That practice evolved over time as more research was conducted. Prevalence rates for co-existent tree nut allergy range from 12-38.8% based on studies that conducted OFCs. Parents of infants reacting to peanuts often avoid all nuts due to fear of cross-contaminati...

Approximately 23-68% of peanut allergic children have co-existent tree nut or seed allergies. At some point, the child may accidentally ingest a tree nut/seed, or the parents may be interested in introducing tree nuts into the diet. Because many tree nut and seed reactions can be as severe or more severe than peanut reactions, it is wise to perform a test for tree nuts and seeds. If the provider decides not to perform a test for tree nuts/seeds, parents usually eliminate all nuts and seeds to mi...