A 72 year-old presents with an intentional overdose of a bottle of aspirin about 3 hours prior to presentation in the ED. Which of the following arterial blood gas results would you expect to come from this patient?
A. pH 7.47 pCO2 31 pO2 96 HCO3 25
B. pH 7.14 pCO2 68 pO2 102 HCO3 23
C. pH 7.33 pCO2 48 pO2 58 HCO3 29
D. pH 7.45 pCO2 21 pO2 124 HCO3 14