The most common cause of difficulty with ventilation is: A) ...

[vicotolentino]

The most common cause of difficulty with ventilation is:
 
  A) improper positioning of the head and chin.
  B) failing to get a tight mouth-to-mouth seal.
  C) blowing too hard and fast.
  D) forgetting to pinch the nostrils closed.

Question 2

Whenever possible, the most efficient way to perform rescue breathing is:
 
  A) mouth to nose.
  B) mouth to mouth.
  C) mouth to stoma.
  D) mouth to barrier.

[ktidd]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: B