A male patient with an acute exacerbation of his emphysema presents in severe distress with decreased air movement and diffuse inspiratory wheezes in all fields. HR = 132, BP = 142/88, RR =30, SaO2 = 88%. Which of the following blood gas values is most likely?

A) pH of 7.6
B) PO2 of 100 mmHg
C) PCO2 of 70 mmHg
D) PCO2 of 35 mmHg

C