<prompt> A patient becomes pulseless and his BP crashes after myocardial infarction. Diagnosis is?Monomorphic ventricular tachycardiaBidirectional tachycardiaPolymorphic ventricular tachycardiaVentricular fibrillation  <response>: The hea rate is 250 bpm and broad complex QRS is seen in all leads. The patient has Ventricular Tachycardia Needs a DC shock of 200 J biphasic. 