Extrication fundamentals. Proper care of the entrapped patient.

"Medic 7, Rescue 1, Engine 45, respond to an accident with entrapment." Medic 7 arrives, establishes command and sizes up the scene. It's a two-car head-on collision with one unresponsive driver entrapped by a jammed door. The driver of the other vehicle is walking around and appears uninjured. There's heavy damage to both vehicles, but most of the vehicle doors open and their side-curtain and front-end air bags have deployed. Both patients are triaged. The unresponsive driver is triaged "red" and the walking driver is triaged "green." A second ambulance is requested for the "green" patient and the first crew's efforts are focused on the "red" patient.