Final answer:
The nurse should report a postoperative urinary output exceeding 200 mL in a 2-hour period to the physician.
Step-by-step explanation:
The abnormal postoperative urinary output that the nurse should report to the physician for a 2-hour period is d) >200 mL.
Normal urine volume varies, but the kidneys must produce a minimum urine volume of about 500 mL/day to rid the body of waste. Output below this level may be caused by severe dehydration or renal disease and is termed oliguria. A postoperative urinary output exceeding 200 mL in a 2-hour period may indicate excessive urine production (polyuria) and could be a cause for concern. The nurse should report this abnormality to the physician for further evaluation and management.