Which of the following are periods of no gas flow during negative pressure ventilation?
I.Inspiration
II.End inspiration
III.Expiration
IV.End expiration
A) II and IV only
B) II only
C) IV only
D) I and III only

Question

Quizplus · Accepted Answer

II and IV only are periods of no gas flow during negative pressure ventilation. End inspiration and end expiration are the points where the transition between inhalation and exhalation occurs, and no gas flow happens at these moments.

Which of the Following Are Periods of No Gas Flow