A 50 kg patient is receiving mechanical ventilation after a…

A 50 kg patient is receiving mechanical ventilation after a TAAA repair. He is on a PB 840 in the ICU with the following settings and flow-time waveform?Mode: PC-AC FiO2:   50Mandatory Rate: 8 bpm                         Total rate:  15 bpmPEEP: 10 cmH2O                                 Exh Vt:  500 mLPinsp: 30 cmH2O                                  Ti:  0.9 sec  Which of the following changes would you recommend to increase both MAP and tidal volume in this patient?