The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Two hours after undergoing open cholecystectomy for complicated cholecystitis, a 48-year-old woman develops dizziness, lethargy, abdominal pain, and nausea. She has systemic lupus erythematosus and hypertension. Prior to hospitalization, her medications included nifedipine and prednisolone. Her pulse is 112/min and blood pressure is 90/64 mm Hg. Examination shows central obesity. The abdomen is soft and non-tender, and the laparoscopic incisions have no discharge. Her serum cortisol and serum ACTH are decreased. Which of the following additional findings is most likely in this patient?   (A) Normal anion gap metabolic acidosis   (B) Hyperkalemia   (C) Hyperglycemia   (D) Hyponatremia
['(D) Hyponatremia <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Normal anion gap metabolic acidosis \n (B) Hyperkalemia \n (C) Hyperglycemia \n (D) Hyponatremia <> possible answers', '  Two hours after undergoing open cholecystectomy for complicated cholecystitis, a 48-year-old woman develops dizziness, lethargy, abdominal pain, and nausea. She has systemic lupus erythematosus and hypertension. Prior to hospitalization, her medications included nifedipine and prednisolone. Her pulse is 112/min and blood pressure is 90/64 mm Hg. Examination shows central obesity. The abdomen is soft and non-tender, and the laparoscopic incisions have no discharge. Her serum cortisol and serum ACTH are decreased. Which of the following additional findings is most likely in this patient? <> context@']