The patient has a goal of maintaining urinary output of at least 80 mL/hour as part of the nursing care plan.However, the patient's urinary output for the shift was only 20 mL/hour.What is the appropriate action of the nurse?

Inform the patient that the urinary output goal for the shift was not met.

Contact the physician to obtain an order for a diuretic.

Change the goal to: patient will maintain urinary output of at least 20 mL/hour.

Reassess the patient to determine why the urinary output was less than 80 mL/hour.