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: Surgery
What is the most common complication of ERCP 
Select and explain. 
A. Acute pancreatitis, B. Perforation, C. Bleeding, D. Infection
A: Acute pancreatitis
Answer: A: Acute pancreatitis 
Explanation: Most common complication of ercp is acute pancreatitis.
Second most common complication is duodenal perforation
Cholangitis, bleeding, infection are the other complication.