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 55-year-old man presents to urgent care for weakness and weight loss. He states for the past several months he has felt progressively weaker and has lost 25 pounds. The patient also endorses intermittent abdominal pain. The patient has not seen a physician in 30 years and recalls being current on most of his vaccinations. He says that a few years ago, he went to the emergency department due to abdominal pain and was found to have increased liver enzymes due to excessive alcohol use and incidental gallstones. The patient has a 50 pack-year smoking history. His temperature is 99.5°F (37.5°C), blood pressure is 161/108 mmHg, pulse is 90/min, respirations are 17/min, and oxygen saturation is 95% on room air. Physical exam reveals an emaciated man. The patient has a negative Murphy's sign and his abdomen is non-tender. Cardiopulmonary exam is within normal limits. Which of the following is the next best step in management?
assistant
CT scan of the abdomen