Which patient has an indication for ventilatory replacement? A patient with ABG results of __.
A. pH 7.35, PaO2 80, PaCO2 45, HCO3 22, Sa)2 93%
B. pH 7.32, PaO2 68, PaCO2 44, HCO3 19, SaO2 90%
C. pH 7.50, PaO2 75, PaCO2 43, HCO3 29, SaO2 92%
D. pH 7.20, PaO2 58, PaCO2 55, HCO3 24, SaO2 88%
