This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Emergency Clinical Scenario, Subject name: Medicine
[{'content': 'A 53-year-old man presents to casualty with severe chest pain. He has a history of angina. ECG shows ST elevation of 4 mm in leads V1-V4. Thrombolysis is done but pain and ECG findings are persisting even 90 minutes after sta of thrombolysis. What is the best management of this patient? \nSelect and explain. \nA. Rescue PCI, B. Primary PCI, C. Delayed PCI, D. IV Abciximab', 'role': 'user'}, {'content': "Answer: A \nExplanation: On treatment, ST elevation reduces gradually in 90 mins In this patient ST elevation doesn't come down even after thrombolysis. Failed thrombolysis--> Do Rescue PCI (Per cutaneous coronary interventions) Other options Primary PCI --> For STEMI Delayed PCI--> For NSTEMI IV Abciximab-->For NSTEMI", 'role': 'assistant'}]