74. A licensed practical nurse (LPN) is caring for a client…

74. A licensed practical nurse (LPN) is caring for a client diagnosed with acute renal failure.  The LPN reports to the registered nurse (RN), that the urine output is 1560 mL for the past 8 hours.  The LPN, asks how a patient with renal failure can have such a large urine output. The best response by the nurse is