Review Question - QID 8360

A 67-year-old man who underwent an uncomplicated hip arthroplasty 9 years ago has had a 1-week history of groin pain with movement. Radiographs reveal a well-positioned, well-fixed cementless arthroplasty with mild eccentricity of the femoral head within the polyethylene. His serum C-reactive protein (CRP) level is 3.0 mg/L (reference range, 0.08-3.1 mg/L) and erythrocyte sedimentation rate (ESR) is 5 mm/h (reference range, 0-20 mm/h). What is the most appropriate next step in management of the patient?