Study Objective: Our study aims to determine the incidence of unused peripheral intravenous cannulas inserted in the emergency department (ED).
Methods: A retrospective cohort study using a structured electronic medical record review was performed in a 640-bed tertiary care hospital in Melbourne, Australia. During a 30-day period, all patients who had a peripheral intravenous cannula recorded as a procedure on their electronic medical record in the ED were included in this study.