This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute coronary syndrome, Subject name: Medicine
[{'content': "True statement regarding Dressler's Syndrome \nSelect and explain. \nA. Usually occurs 1-4 days after Ml, B. Occurs in 10% of patients with acute Ml, C. Treatment of choice is aspirin, D. Complication of early Pericarditis", 'role': 'user'}, {'content': "Answer: C \nExplanation: Early Pericarditis Late Pericarditis (Dressler's Syndrome) 10% of patients with acute Ml. Risk factors: Transmural Ml Symptoms: Worsening of pain while supine, radiation of pain to the trapezius ridge. Physical exam: Pericardial friction rub. Diagnosis: ECG may show evidence of pericarditis; echo may show pericardial effusion Treatment: Aspirin. Avoid NSAIDs and coicosteroids (may interfere with healing of infarcted myocardium) 1-3% of patients with acute Ml. secondary to immune-medicated injury. Timing: Usually occurs 1-8 weeks after Ml. Physical exam: Pericardial rub, fever. Diagnosis: ECG may show evidence of pericarditis; echocardiography may show pericardial effusion Treatment: Aspirin. If > 4 weeks since Ml, can use NSAIDs or coicosteroids", 'role': 'assistant'}]