A patient has been admitted with an exacerbation of COPD. What arterial blood gas values would the nurse anticipate in this patient?

A) pH 7.52, PaCO₂ 60 mm Hg, HCO₃ 24 mEq/L
B) pH 7.38, PaCO₂ 32 mm Hg, HCO₃ 20 mEq/L
C) pH 7.32, PaCO₂ 50 mm Hg, HCO₃ 28 mEq/L
D) pH 7.26, PaCO₂ 62 mm Hg, HCO₃ 25 mEq/L