Indication for thrombolysis

In a patient with chest pain and elevated cardiac troponin, which of the following is an indication for thrombolysis? a) New onset left bundle branch block b) New onset right bundle branch block c) New onset complete heart block d) New onset second degree AV block Correct answer: a) New onset left bundle branch block Thrombolytic therapy is indicated in ST elevation myocardial infarction and new onset left bundle branch block with features of myocardial infarction. In other situations described above, if ST elevation myocardial infarction is present, thrombolysis is indicated. All the other listed conditions will not mask ST elevation myocardial infarction if co-existant, but left bundle branch block can mask infarction and sometimes mimic it.

http://cardiophile.org/2013/09/indication-for-thrombolysis/

Source: Cardiophile MD - September 18, 2013 Category: Cardiology Authors: Prof. Dr. Johnson Francis MD, DM, FACC, FRCP Edin, FRCP London Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs