Following brain surgery, the patient is producing massive volumes of dilute urine. The nurse suspects which structure was inadvertently harmed during the surgery?

The patient was admitted to the critical care unit following a fall from a balcony. Emergency responders were unable to adequately ventilate the patient until arrival at the emergency department. The patient has been unresponsive since the fall and is now receiving mechanical ventilation and continuous intracranial pressure monitoring. The nurse assesses for signs of which complications in this patient? Select all that apply.

The nurse is caring for the patient recently diagnosed with colon cancer. Which assessment prompts the nurse to call for the provider immediately?