Which of the following represents the safe starting point for pressure support of a patient just placed on volume-controlled intermittent mandatory ventilation with the following set and measured parameters: tidal volume,475 mL; peak inspiratory pressure,30 cm H₂O; plateau pressure,10 cm H₂O; and flow rate,45 L/min?
A) 4 cm H₂O
B) 7 cm H₂O
C) 20 cm H₂O
D) 27 cm H₂O

Question

Quizplus · Accepted Answer

The safe starting point for pressure support is the transairway pressure value (Peak inspiratory pressure - Plateau pressure).In this case,transairway pressure = 30 cm H₂O - 10 cm H₂O = 20 cm H₂O.

Which of the Following Represents the Safe Starting Point for Pressure