70 kg Patient Known severe COPD BAse line pH 7.36, CO2 55, O…

70 kg Patient Known severe COPD BAse line pH 7.36, CO2 55, O2 60, HCO3 35        SIMV Vent settings PC 20 cmH2O, Vt 500, IMV rate 8, PS 10 cmH2O, Spontaneous rate 16, Spontaneous Vt 375, PEEP of 5 cmH2O, FIO2 35%,Interpret the following ABG:pH 7.31, CO2 63, PaO2 63 HCO3 32 SaO2 91%