question: Q:A 69-year-old man presents with granulomatosis with polyangiitis diagnosed about 8 months ago. He was treated appropriately and states that his symptoms are well controlled. He is presenting today for a general follow up visit. His temperature is 99.0°F (37.2°C), blood pressure is 184/104 mmHg, pulse is 88/min, respirations are 12/min, and oxygen saturation is 98% on room air. His physical examination is notable for the findings in Figures A and B. Which of the following would be found in this patient on serum laboratory studies?? 
  {'A': 'Hyperkalemia and metabolic acidosis', 'B': 'Hyperkalemia and metabolic alkalosis', 'C': 'Hypokalemia and metabolic acidosis', 'D': 'Hypokalemia and metabolic alkalosis', 'E': 'Hypokalemia and normal acid-base status'},