<prompt> Thrombolytics can provide relative mortality reduction in the treatment of acute myocardial infarction, if patient comes within:6 hours12 hours18 hours24 hours  <response>: Ans. B 12 hoursRef: Harrison 18e p2027Thrombolytic drugs should be given within 12 hours after onset of acute MI and within 3 hours of acute strocke. 