<prompt> ST elevation is seen in all of the following conditions except-Myocardial infarctionCoronary artery spasmConstrictive pericarditisVentricular aneurysm  <response>: Ans. is c1 i.e., Constrictive pericarditis Causes of ST segment elevationCauses of ST segment elevationCommon causesRare causeso Acute myocardial infarctionwitho Brugada syndromeo Prinzemetal angina non infarction transmural ischaemiao Class I C antiarrhythmic drugso DC cardioversiono Ventricular aneurysm Post myocardial infarctiono Hyperkalemia o Hypothermia J wave Osborn waveo Acute pericarditiso Myocardial injuty Myocarditis Trauma, Tumor invasiono Normal variant early repolarization patterno L.V hypertrophy left bundle branch block o Brugada syndrome shows RBBB like pattern with ST elevation in right precordial leads. 