MSFinals-6423

A 35-year-old man is brought to the Emergency department following a house fire. He appears lethargic, but his cheeks have a pinkish hue and he seems to be well perfused. His blood pressure is 100/60 mmHg and his pulse is 95 and regular. Upon blood gas analysis, a CO level of 12% and metabolic acidosis with a pH of 7.15 are detected. What is the most suitable next step in management?