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
True regarding type-III respiratory failure are all except: September 2009 
Select and explain. 
A. Also known as perioperative respiratory failure, B. There is impaired CNS drive to breathe, C. Occurs as a result of atelectasis, D. Can be managed conservatively
B: There is impaired CNS drive to breathe
Answer: B: There is impaired CNS drive to breathe 
Explanation: Ans. B: There is impaired CNS drive to breathe Type III respiratory failure occurs commonly in perioperative period as a result of lung atelectasis. After general anaesthesia, decrease in functional residual capacity leads to collapse of dependent lung units. Such atelectasis can be managed by frequent changes in position, chest physiotherapy, upright positioning and aggressive control of incisional pain.