Emma M Bartlett1, Jason G Emsley2,3, Mathew B Kiberd4. 1. Department of Pediatrics, IWK Health, Dalhousie University, Halifax, NS, Canada. 2. Department of Emergency Medicine, IWK Children's Health Centre, Dalhousie University, Halifax, NS, Canada. 3. Department of Emergency Medicine, Halifax Infirmary, Dalhousie University, Halifax, NS, Canada. 4. Department of Anesthesia, Pain Management and Perioperative Medicine, Pediatric Cardiac Anesthesiology, Dalhousie University, Halifax, NS, Canada. Mathew.kiberd@iwk.nshealth.ca.