Review Question - QID 109760

A 52-year-old woman is admitted to the surgical unit after a laparoscopic hysterectomy for uterine leiomyomas performed 2 days ago. The surgery was performed under general anesthesia, blood loss was minimal, and there were no intraoperative complications. The patient reports lower abdominal pain and discomfort. Medical history is significant for multiple sclerosis that is well-controlled with ocrelizumab. Her last multiple sclerosis flare was approximately 7 years ago and presented with paresthesias and weakness of the upper extremities. Her temperature is 99°F (37.2 °C), blood pressure is 125/85 mmHg, pulse is 99/min, and respirations are 19/min. On physical exam, the patient appears restless and uncomfortable. The surgical incision sites are mildly erythematous and without discharge. There is tenderness with deep suprapubic palpation. The neurologic exam is unremarkable. Laboratory studies show:

Serum:
Na+: 144 mEq/L
Cl-: 100 mEq/L
K+: 4.3 mEq/L
HCO3-: 26 mEq/L
Glucose: 105 mg/dL
Creatinine: 3.1 mg/dL

Which of the following is the most appropriate next step in management?