This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Surgery
[{'content': 'All are true about pulmonary contusion except: \nSelect and explain. \nA. Missed on chest X-ray in 20%, B. Pain management is impoant to prevent hypoventilation, C. CT is sensitive for diagnosis, D. >25% contusion may likely needs intubation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Pulmonary Contusion Inadequate pain relief leads to hypoventilation, promotion of atelectasis & worsening hypoxemia. Lung contusions may be present on the initial chest radiograph but typically require time to become visualized (it can be missed) Diagnosis: IOC is CECT. Intubation should be reserved for classical indications only (it can result in Pneumonia).', 'role': 'assistant'}]