This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Feature of Acute severe Asthma include all of the following, except \nSelect and explain. \nA. Tachycardia > 120/min, B. Pulsus paradoxus, C. Respiratory acidosis, D. None (All are Features o Acute severe Asthma', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is `d' i.e., None (All are Features of Acute severe Asthma) Symptoms of acute severe Asthma Breathlessness at rest Speak in words Unable to recline Respiratory rate > 30/min Loud insiratory and expiratory wheeze Hea rate > 120 Pulsus paradoxus > 25 Mental status agitated Functional assessment:? PEF < 50 or response to therapy lasts < 2 hours Sa02 < 91 Pa02 <60 PaCO2 . 42", 'role': 'assistant'}]