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
[{'content': 'Which of the following drug is not used in Jorgenson technique: \nSelect and explain. \nA. Pentobarbitol., B. Scopolamine., C. Propofol., D. Pethidine.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Jorgenson technique includes intravenous administration of opioids. The drugs used in Jorgenson technique are:\n\nPentobarbitol\nMepiridine\nScopalamine (Hyoscine)\nPethidine, etc.', 'role': 'assistant'}]