Unscheduled returns to the emergency department: an outcome of medical errors?

Unscheduled returns are associated with medical errors in prognosis, treatment, follow up care, and information. A worse post-ED destination is associated with these medical errors and patient factors (dyspnoea and advanced age). Patient dissatisfaction is associated with medical errors, level of triage or care zone, patient educational level and ED time work shift. Most of these factors are modifiable.