When a patient is to be switched from continuous mandatory ventilation (CMV) to intermittent mandatory ventilation (IMV) to facilitate weaning from mechanical ventilation,

which of the following could be used in addition to IMV to assist this process?
a. Continuous positive airway pressure (CPAP)
b. Positive end-expiratory pressure (PEEP)
c. Pressure support (PS)
d. Pressure control (PC)

ANS: C
Spontaneous breaths during intermittent mandatory ventilation (IMV) can be supported with pressure support if the clinician wants to reduce the work of breathing (WOB) for the spontane-ous breath.