Remember that patient you saw last week: characteristics and frequency of patients experiencing anticipated and unanticipated death following ED discharge.

The emergency department (ED) is a complex and high-risk environment. In this study, patient deaths occurring within 7 days of ED discharge were analyzed to determine if the deaths were anticipated or unanticipated and/or due to medical error. Rates of unanticipated death due to medical error were low, however clinicians should consider related patient, provider, and system factors.