A 31-year-old woman was brought to the emergency room by an ambulance after being struck by a car. She was initially responsive at the scene but subsequently lost consciousness and had to be intubated. Her vital signs were stable and preliminary examination did not show any sign of abdominal injury or open fractures. Her pupils were equal and reactive and she responded to painful stimuli. Portable radiographs of the chest and lateral cervical spine were unremarkable.
