"Syncope is a sudden, transient, self-limiting loss of consciousness associated with an inability to maintain postural tone". In this webinar excerpt, Associate Professor Geoff Couser discusses an approach to patients presenting with syncope. Geoff (FACEM MEd) is a senior staff specialist in emergency medicine at the Royal Hobart Hospital and a Clinical Consultant with Ambulance Tasmania. He was discipline lead in emergency medicine at the University of Tasmania until 2017 and has authored numerous textbooks and papers relating to emergency medicine. Geoff outlines potential serious causes of syncopal episodes, as well as dealing with the uncertainty of unknown causes of collapse.