4 hours later,IMV settings are PIP 19,PEEP 4,Rate 35, Ti0.4,Fi0255%. The infant has gradually become very active.and breathing irregularly over and through the ventilator breaths. The flow volume and pressure volume loops are shown on the next slide. Do you want to make any changes? 4 hours later, IMV settings are PIP 19, PEEP 4, Rate 35, Ti 0.4, FiO2 55%. The infant has gradually become very active. and breathing irregularly over and through the ventilator breaths. The flow volume and pressure volume loops are shown on the next slide. Do you want to make any changes?