A Patient with a History of Chronic Obstructive Pulmonary Disease

Multiple Choice

A patient with a history of chronic obstructive pulmonary disease (COPD) has arterial blood gases with pH 7.36, PCO₂ 50 mm Hg, and HCO₃ 20 mEq/L.The patient has oxygen by nasal cannula at 2 L/min.Which order should a nurse anticipate for this patient?

A) Discontinue oxygen.
B) Begin oxygen by facemask.
C) Increase oxygen by nasal cannula to 5 L/min.
D) Start oxygen with Venturi mask at 28%.