ST elevation is seen in all of the following conditions except-: (A) Myocardial infarction, (B) Coronary artery spasm, (C) Constrictive pericarditis, (D) Ventricular aneurysm
Answer is C. Ans. is 'c1 i.e., Constrictive pericarditis Causes of ST segment elevationCauses of ST segment elevationCommon causesRare causeso Acute myocardial infarction}witho Brugada syndromeo Prinzemetal angina (non infarction transmural ischaemia)o Class I C antiarrhythmic drugso DC cardioversiono Ventricular aneurysm (Post myocardial infarction)o Hyperkalemia o Hypothermia (J wave / Osborn wave)o Acute pericarditiso Myocardial injuty (Myocarditis Trauma, Tumor invasion)o Normal variant ('early repolarization ' pattern)o L.V hypertrophy / left bundle branch block o Brugada syndrome shows RBBB like pattern with ST elevation) in right precordial leads.