question: Q:A 56-year-old man is seen in the hospital for a chief complaint of intense thirst and polyuria. His history is significant for recent transsphenoidal resection of a pituitary adenoma. With regard to the man's fluid balance, which of the following would be expected?? 
  {'A': 'Hyponatremia', 'B': 'Serum osmolarity <290 mOsm/L', 'C': 'Elevated serum ADH', 'D': 'Increased extracellular fluid osmolarity', 'E': 'Elevated blood glucose'},