system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 24-year-old man comes to the emergency department because of left shoulder pain hours after suffering a fall from a height of approximately 10 feet while rock climbing about 5 hours ago. He initially thought the pain would resolve with rest but it became more severe over the last 2 hours. Last year while rock climbing he fell onto his right shoulder and “needed a sling to fix it”. He has psoriasis. His only medication is topical clobetasol. His pulse is 95/min, respiratory rate is 16/minute, and blood pressure is 114/70 mm Hg. Examination shows full passive and active range of motion at the left shoulder. There is no tenderness to palpation at the acromioclavicular joint. There are silvery plaques over both knees and elbows. Abdominal exam shows 7/10 left upper quadrant tenderness with voluntary guarding. A complete blood count and serum concentrations of electrolytes are within the reference range. Which of the following is the most appropriate next step in management?
assistant
CT scan of the abdomen