A 56-year-old man comes to the physician for a follow-up appointment. He has smoked 2 packs of cigarettes daily for 40 years. He has a 3-year history of productive cough. Vitals are normal. Which of the following is most likely to be seen in this patient?
Arterial pCO2 of 30 mmHg
Bicarbonate of 21 mEq/L
Decreased urinary protons
Holosystolic murmur that increases with inspiration
Increased pulmonary capillary wedge pressure
