Review Question - QID 108625

A 65-year-old man arrives to the emergency department (ED) complaining of pain and swelling in his right leg. The patient reports he recently underwent a total hip replacement. His past medical history is significant for hypertension and diabetes. His current medications include aspirin, lisinopril, metformin, and atorvastatin. On arrival, his temperature is 99°F (37.2°C), blood pressure is 135/82 mmHg, pulse is 88/minute, and oxygen saturation is 99% O2. He denies chest pain or shortness of breath. On physical exam, his right leg appears moderately erythematous, swollen, and is tender to palpation. Other physical exam findings are negative.
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