Which of the following is the most common cause of an obstructed airway?
a. Tongue falling backward c. Mucus production
b. Bleeding from the nose d. Cardiac arrest
ANS: A
It can be assumed that the tongue is the most common cause of airway obstruction, because many devices have been developed to displace the tongue and create a passage for air. Bleeding from the nose and mucus production can cause airway obstruction but are not the most common causes. Cardiac arrest is not the cause of an obstructed airway; rather, it is the tongue that will obstruct the airway during a cardiac arrest.
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