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: Anaesthesia
[{'content': 'Epidural anaesthesia can cause all of the following, EXCEPT: \nSelect and explain. \nA. Hypotension, B. Nausea, C. Bladder distension, D. Hyperpnoea', 'role': 'user'}, {'content': "Answer: D \nExplanation: During injection of local anesthetic into a dural tear will result in a high block, manifesting as unconsciousness, severe hypotension, and respiratory paralysis requiring (causing hypopnoea). Accidental dural puncture more often results in a severe headache. A common complication of epidural anesthesia is prolonged blockade of parasympathetic fibers that innervate the bladder with resultant urinary retention. Nausea & vomiting, total spinal analgesia, prolonged analgesia are other common complications. Ref: Dorian R.S. (2010). Chapter 47. Anesthesia of the Surgical Patient. In F.C. Brunicardi, D.K. Andersen, T.R. Billiar, D.L. Dunn, J.G. Hunter, J.B. Matthews, R.E. Pollock (Eds), Schwaz's Principles of Surgery, 9e.", 'role': 'assistant'}]