Author Question: Compared to a pressure-controlled strategy, what is the primary advantage of volume-controlled ... (Read 36 times)

BRWH · **on:** Jul 16, 2018

Compared to a pressure-controlled strategy, what is the primary advantage of volume-controlled ventilatory support?

a. Provides a decelerating flow pattern.
b. Limits and controls peak airway pressures.
c. Improves patient-ventilator synchrony.
d. Guarantees a minimum minute ventilation.

Question 2

Which of the following modes of ventilatory support would you recommend for a patient who can breathe spontaneously and only requires assistance to overcome the work of breathing creat-ed by the ET tube?

a. Pressure-targeted continuous mandatory ventilation
b. Pressure-supported ventilation
c. Volume-targeted CMV
d. Pressure-targeted intermittent mandatory ventilation

jackie · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
The primary advantage of volume-controlled ventilation is maintenance of a stable minute venti-lation in the face of changing lung mechanics.

Answer to Question 2

ANS: B
PSV can reduce work of breathing and may improve patient ventilator synchrony by placing more control with the patient. Many clinicians use PSV simply to overcome WOB imposed by the artificial airway.