This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inhalational Anesthetic Agents, Subject name: Anaesthesia
[{'content': 'Which is/ are not desirable for a patient with pacemaker? \nSelect and explain. \nA. Thiopentone sodium, B. ECG monitoring, C. Suxamethonium, D. Unipolar diathermy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: unipolar diathermy is not desirable it is preferable to use Bipolar diathermy.', 'role': 'assistant'}]