Your Patient Fell Off a Ladder and Is Not Breathing

Your patient fell off a ladder and is not breathing. You are the only rescuer on scene and want to begin ventilating with a bag mask immediately. You place him on his back, open his airway, and insert an oral airway device. You should next

A) create a face-to-mask seal by forming a C around the ventilation port with your thumb and index finger.
B) apply a bag mask device and squeeze the bag every 3-5 seconds until you see his chest gently rise.
C) position the narrow portion of the mask over the bridge of his nose and the wide part over his lower lip and chin.
D) lift up slightly on the jaw with your 3rd through 5th fingers, bringing the patient's jaw up to the mask as you tilt his head backward.