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
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.
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