This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'The ideal tidal volume in a patient ventilated for ARDS is- \nSelect and explain. \nA. 6 mL/kg, B. 10 mL/Kg, C. l4 mL/kg, D. 2O mL/kg', 'role': 'user'}, {'content': "Answer: A \nExplanation: The ideal tidal volume in a patient ventilated for ARDS is 6mL/kg predicted body weight.Moality was significantly lower in this low TV patients(31%) compared to the conventional TV (12 mL/kg predicted body weight) ventilation(40%). Despite its life-saving potential mechanical ventilation can aggravate lung injury in severe ARDS patients. Ventilator-induced lung injury arises from two principal mechanisms: Volutrauma from repeated alveolar overdistension from excess tidal volume; Atelectrauma from recurrent alveolar collapse. Reference: Harrison's Medicine,20thedition, page no:203", 'role': 'assistant'}]