This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Local and Regional Anesthesia), Subject name: Anaesthesia
[{'content': "All are methods of regional anaesthesia except - \nSelect and explain. \nA. Topical anaesthesia, B. Bier's block, C. Nerve block, D. Total intravenous anaesthesia", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Total intravenous anaesthesia Regional anaesthesia (Local anaesthesia)o Regional anaesthesia means loss of sensation in body part without the loss of consciousness or the impairment of central control of vital function.o Methods are:1. Topical anaesthesia (surface anaesthesia)2. Infiltration anaesthesia3. Intravenous regional anaesthesia (Bier's block)4. Conduction block (either field block or nerve block).5. Spinal anaesthesia6. Epidural anaesthesia", 'role': 'assistant'}]