Answer to Question 1
ANS: B
The term pressure limited points to either a pressure support breath or a pressure control breath. These breaths both are limited by the operator-selected pressure. A spontaneous breath is always flow cycled. This eliminates the pressure control breath because those breaths are always time cycled. Therefore, a patient triggered, pressure limited, flow cycled breath is a pressure support breath.
Answer to Question 2
ANS: C
A mode in which the patient can receive a time triggered breath or a patient triggered breath is continuous mandatory ventilation (CMV or A/C). Pressure limited breaths that are either time or patient triggered occur in pressure-controlled continuous mandatory ventilation (PC-CMV), where the breath is also time cycled. Pressure support ventilation (PSV) breaths are always flow cycled. Continuous positive airway pressure (CPAP) breaths are always spontaneous, and vol-ume-controlled intermittent mandatory ventilation (VC-IMV) breaths are volume limited and volume cycled.