Ketamine Versus Co-administration of Ketamine and Propofol for Procedural Sedation in a Pediatric Emergency Department

The purpose of this study is to compare the effectiveness of the co-administration of intravenous ketamine and propofol to intravenous ketamine as a single agent for procedural sedation in the pediatric emergency department. The investigators hypothesize that patients receiving co-administration of ketamine and propofol will have a lower rate of adverse events, compared to patients receiving ketamine for procedural sedation.