The following data are collected from a patient receiving vo…

The following data are collected from a patient receiving volume-controlled ventilation: PEEP LEVEL PaO2 PVO2 VT 6 cm H2O 64 torr 35 torr 600 mL 8 cm H2O 70 torr 38 torr 600 mL 10 cm H2O 75 torr 43 torr 600 mL 12 cm H2O 80 torr 34 torr 600 mL Which of the following represents optimal PEEP?

These data were obtained from a 70-kg (154-lb) patient on vo…

These data were obtained from a 70-kg (154-lb) patient on volume-controlled ventilation in the assist-control mode: Mode Assist-control FIO2 0.70 Rate 12 breaths/min VT 500 mL PEEP 8 cm H2O ABGs pH 7.42 PaCO2 43 mm Hg PaO2 172 mm Hg HCO3 23 mEq/L BE -2 mEq/L On the basis of this information, the respiratory therapist should recommend which of the following?