Further Evaluations of Factors That May Predict Biphasic Reactions in Emergency Department Anaphylaxis Patients

S Lee, A Peterson, CM Lohse, EP Hess, RL Campbell. J Allergy Clin Immunol Pract. 2017;5(5):1295–1301 To evaluate variables to help in the identification of patients who are at an increased risk for biphasic anaphylactic reactions in the emergency department (ED). The study included 807 patients in the ED with a total of 872 ED visits for anaphylaxis. The median age was 34 years, with 58% female patients and 26% pediatric subjects <18 years of age. Food was the most common inciting trigger in 35% of patients, followed by drugs in 20% of patients and venom in 12% of …