Sign nurses....
Although helpful as shit in a hospital setting most nurses have the most basic first aid/cpr training imaginable. I know this because my roomate is a nurse and he has told me that he barely knows or remembers any of his first aid training.
If someone ever gets punched in the head like that they need c-spine control right away until EMS arrives or you can fully rule out any type of c-spine injury. Best to hold on anyways until a backboard arrives with a neck collar.
Kids gonna need some dental work