question: Q:A 35-year-old man is brought to the emergency department because of a 2-week history of abdominal cramps, vomiting, and constipation. He also reports having to urinate frequently and occasional leg pain. He has had similar episodes in the past. He has hypertension and peptic ulcer disease. Current medications include captopril and ranitidine. He appears depressed. Physical examination shows weakness in the extremities. Abdominal examination shows mild epigastric tenderness. There is no rebound or guarding. He has a restricted affect. Laboratory studies show elevated serum parathyroid hormone levels; serum calcium is 14.2 mg/dL. Abdominal ultrasonography shows multiple small calculi in the right kidney. Which of the following is most likely to provide rapid relief in this patient?? 
  {'A': 'Intravenous pamidronate therapy', 'B': 'Reduction of dietary intake of calcium', 'C': 'Normal saline and intravenous furosemide therapy', 'D': 'Normal saline and intravenous fentanyl therapy', 'E': 'Normal saline and intravenous calcitonin therapy'},