A postoperative 46-year-old, 80 kg (176 lb) patient is breat…
A postoperative 46-year-old, 80 kg (176 lb) patient is breathing spontaneously at a rate of 30 with an FIO2 0.50. The ABG results are obtained: ABG RESULTS pH 7.29 PCO2 62 torr PO2 64 torr HCO3 29 mEq/L BE 4 Mechanical ventilation is instituted with a Vt of 600 ml and an FIO2 of 0.50. The SIMV rate should be set on which of the following?