A pаtient receiving cоntrоl-mоde continuous mаndаtory ventilation has the following ABGs on an FIO2 of 0.5: pH = 7.23; PCO2 = 61 mm Hg; HCO3- = 26 mm Hg. The current minute ventilation (VE) is 9.2 L/min. What new VE would you recommend?