This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Preoperative assessment and monitoring in anaesthesia, Subject name: Anaesthesia
[{'content': 'In volume controlled ventilation, the inspiratory flow rate is \nSelect and explain. \nA. 140-160 L/min, B. 110-130 L/min, C. 60-100 L/min, D. 30-50 L/min', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In most patients, inspiratory flow rates is 60 L/min are adequate. Higher flow rates are required in patients with higher ventilator demands.', 'role': 'assistant'}]