QRS duration of > 120 milliseconds rsR' "bunny ear" pattern in precordial ... However, unlike in the presence of a left bundle branch block, myocardial ischemia and infarction can easily be ...

Remember that T wave inversions and ST segment depression are normal in leads V1 to V3 in the presence of a right bundle branch block ... in V1 An RSR’ or “bunny ear” pattern present ...