MRCP2-1811

MRCP2-1811

A 67-year-old man has been referred for a medical opinion by the surgical team. He underwent an elective open repair of an abdominal aortic aneurysm two days ago and is currently taking regular paracetamol, atorvastatin, and morphine. Ramipril and bisoprolol were recently discontinued. On examination, he appears pale with no signs of chronic liver disease. His pulse is 66 beats per minute and blood pressure is 100/40 mmHg. Yesterday, his liver function tests showed significant abnormalities, including low albumin levels, high bilirubin levels, and elevated ALT, AST, and ALP levels. His INR was also slightly elevated. Prior to admission, his liver function tests were normal. What is the most likely cause of his abnormal liver function tests?