A patient with peripheral vascular disease and poor circulation who is experiencing tissue death due to ischemia is exhibiting which of the following conditions?

Which is an appropriate method of initially opening the airway of an unconscious trauma patient?

A) Head-tilt/chin-lift B) Nasal tracheal intubation C) Oral tracheal intubation D) Jaw-thrust maneuver

Opioid antagonists include all of the following, except:

A) nalmefene B) naltrexone C) naftifine D) naloxone