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: Surgery
[{'content': 'A 57 year old male suffering from acute pancreatitis develops sudden onset breathlessness with a CVP< 18mmHg. The chest xray shows bilateral infiltrates. The possible diagnosis is \nSelect and explain. \nA. ARDS, B. Myocardial infarction, C. Congestive left hea failure, D. Pulmonary embolism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. ARDSARDS CriteriaAcute, meaning onset over 1 week or less.Bilateral opacities consistent with pulmonary edema must be present and may be detected on CT or chest radiograph.PF ratio < 300 mmHg with a minimum of 5 cmH20 PEEP (or CPAP).CVP < l8 mmHg.', 'role': 'assistant'}]