Which coding system is used to file dental insurance claims for patients?

You arrive on the scene of a patient with severe blunt trauma to the face. You hear gurgling as you approach the patient. After opening the airway with a manual maneuver, what should your next action be?

A) Ventilate B) Apply a cervical collar C) Control the source of hemorrhage D) Suction

Normal exhalation involves all of the following EXCEPT:

A) decreased intrathoracic volume. B) phrenic nerve stimulation. C) relaxation of the diaphragm. D) elastic recoil of lung tissue.