The nurse is caring for an adult who had a computed tomography (CT) scan with contrast at 11 a.m. The patient

The nurse is caring for an adult who had a computed tomography (CT) scan with contrast at 11 a.m. The patient had an IV running at 125 mL per hour and ate 50% of lunch with an 8-oz cup of coffee and 4 oz of soup at 12 noon. The nurse is going on a break at 1 p.m. and provides the following information to the nurse covering the patient during the lunch break. Which information about the patient is of most concern to the nurse covering for the patient? Blood pressure 148/84 mm Hg Medicated for a mild headache Urine output 100 mL at 12:45 Presence of slight nausea