What is the inspiratory time for a frequency of 30 breaths/min and an inspiratory time-to-expiratory time ratio of 1:3?
A) 0.13 second
B) 0.50 second
C) 0.75 second
D) 2.00 seconds

Question

Quizplus · Accepted Answer

Total cycle time = 60 s ÷ frequency = 60 ÷ 30 = 2 s.There are four equal parts to the total cycle time (add the "I" from the inspiratory time-to-expiratory time ratio to the "E" from the inspiratory time-to-expiratory time ratio,or 1 + 3 = 4).Inspiratory time = Total cycle time ÷ (I + E)= 2 ÷ 4 = 0.5 s.

What Is the Inspiratory Time for a Frequency of 30