This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Hemobilia patients presents with GI bleeding and elevated liver biochemical tests. The diagnosis is confirmed by: \nSelect and explain. \nA. Side viewing duodenoscope, B. CECT abdomen, C. USG abdomen, D. Laparotomy', 'role': 'user'}, {'content': "Answer: A \nExplanation: Hemobilia Occur in patients with liver trauma, undergone a liver biopsy, manipulation of the hepatobiliary system, as occurs with endoscopic retrograde cholangiopancreatography (ERCP), percutaneous transhepatic cholangiography, or TIPS, or have hepatocellular carcinoma or a biliary parasitic infection. SYMPTOMS: Patient present with a combination of GI bleeding and elevated liver biochemical test levels. INVESTIGATION: The diagnosis is confirmed by a side-viewing duodenoscope to identify bleeding from the ampulla TREATMENT: Aerial embolization aeriography Ref: Sleisenger and Fordtran's, E-9, P-301.", 'role': 'assistant'}]