This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory Failure, Subject name: Medicine
[{'content': 'Which is the best treatment for type IV respiratory failure? \nSelect and explain. \nA. Non-invasive ventilation with tight-fitting face mask, B. Intubation with mechanical ventilation, C. Continuous positive pressure ventilation, D. High-frequency jet ventilation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Type IV respiratory failure occurs due to hypo-perfusion of respiratory muscles in patients with shock. Normally respiratory muscles consume <5% of total cardiac output and oxygen delivery. Patients in shock may have as much as 40% of cardiac output distributed to respiratory muscles. Intubation and ventilator-assisted breathing will allow re-distribution of cardiac output Non-invasive ventilation with tight-fitting face mask is used in the management of Type 2 Respiratory failure e.g. in cases of exacerbations of COPD.', 'role': 'assistant'}]