This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Antiplatelets and Fibrinolytics, Subject name: Pharmacology
Thrombolytics can provide relative mortality reduction in the treatment of acute myocardial infarction, if patient comes within: 
Select and explain. 
A. 6 hours, B. 12 hours, C. 18 hours, D. 24 hours
B: 12 hours
Answer: B: 12 hours 
Explanation: Ans. (B) 12 hours(Ref: Harrison 18/e p2027)Thrombolytic drugs should be given within 12 hours after onset of acute MI and within 3 hours of acute strocke.