This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pathophysiology - Acute Pancreatitis, 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 heart failure, D. Pulmonary embolism', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., ARDS ARDS Criteria 1. Acute, meaning onset over 1 week or less. 2. Bilateral opacities consistent with pulmonary edema must be present and may be detected on CT or chest radiograph. 3. PF ratio < 300 mmHg with a minimum of 5 cmH20 PEEP (or CPAP). 4. C VP < 18 mmHg. X-Ray showing bilateral infiltrates:", 'role': 'assistant'}]