The Nurse Caring for a Client with Chronic Obstructive Pulmonary

The nurse caring for a client with chronic obstructive pulmonary disease ( COPD) anticipates which of the following arterial blood gas (ABG) findings?

A) pH, 7.40; PaO₂, 90 mm Hg; CO₂, 39 mEq/L; HCO₃, 23 mEq/L
B) pH, 7.32; PaO₂, 85 mm Hg; CO₂, 57 mEq/L; HCO₃, 26 mEq/L
C) pH, 7.47; PaO₂, 82 mm Hg; CO₂, 30 mEq/L; HCO₃, 31 mEq/L
D) pH, 7.31; PaO₂, 95 mm Hg; CO₂, 22 mEq/L; HCO₃, 19 mEq/L