A 62-year-old male patientĀ  has been receiving conventional…

A 62-year-old male patientĀ  has been receiving conventional mechanical ventilation for 4 days. Current pressure control CMV ventilator settings: Inspiratory pressure 38 cmH2O, PEEP 18 cmH2O, FiO2 0.85. Exhaled tidal volumes averageĀ  8 mL/kg. Current assessment findings: Mean airway pressure: 28 cmH2O, SpO2 86%. What ventilator changes would you suggest?