A patient is receiving continuous mandatory ventilation in the control mode at a rate of 10/min. The inspiratory time control is set at 25%. What is the I:E ratio?
A) 1:3
B) 1:2
C) 1:4
D) 1:1

Question

Quizplus · Accepted Answer

The I:E (Inspiratory to Expiratory) ratio is determined by the inspiratory time percentage. If the inspiratory time is set at 25%, this means that 25% of the cycle is for inspiration and 75% is for expiration. Therefore, for every 1 part of inspiration, there are 3 parts of expiration, making the I:E ratio 1:3.

A Patient Is Receiving Continuous Mandatory Ventilation in the Control