A dual-lumen airway with a ventilation port for each lumen is called a(n):

A dual-lumen airway with a ventilation port for each lumen is called a(n):
 
  A) laryngeal mask airway.
  B) esophageal obturator airway.
  C) pharyngo-tracheal lumen airway.
  D) esophageal tracheal Combitube.

Question 2

The AEMT showed that he understands the difference between a pneumothorax and a tension pneumothorax when he made which one of the following statements?
 
  A) A tension pneumothorax causes blood to accumulate around the lung; a pneumothorax involves the accumulation of air only around the lung.
  B) A tension pneumothorax causes cardiac output to decrease; a simple pneumothorax does not affect cardiac output.
  C) A pneumothorax is caused by a closed chest injury; a tension pneumothorax is caused by an open chest injury.
  D) A pneumothorax describes a collapsed lung; a tension pneumothorax involves both a collapsed lung and blood loss.