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': 'Routine second look endoscopy in the setting of non variceal upper GI bleeding is recommended in patients with: \nSelect and explain. \nA. Rockall score 2, B. Treated with epinephrine injection alone, C. Cardiac disease, D. Renal disease', 'role': 'user'}, {'content': "Answer: B \nExplanation: Routine second look endoscopy in the setting of non variceal upper GI bleeding is recommended in patients with Patients who had an incomplete initial endoscopic examination Patients with clinically significant rebleeding Patients who are treated with epinephrine injection alone Ref: Sleisenger and Fordtran's, E-9, P-297.", 'role': 'assistant'}]