This document contains multiple case studies and questions related to the management of polytrauma patients. It discusses cases such as a deliveryman hit by a car with abdominal injuries, a man assaulted with a knife with a chest wound, a motorcyclist struck by a bus, a gunshot wound to the chest, a boy hit by a truck with a nasogastric tube coiling in his chest, and a woman with a neck laceration. It focuses on identifying the most appropriate clinical assessments, diagnostic tests and initial treatments for each case.