A 65 year old male presents to the emergency department with chest pain. Cardiac monitoring shows a wide complex tachycardia. Past medical history is significant only for hypertension. His BP is 100/66, HR 144, RR 24, and T. 37.5. In addition to ongoing chest pain, he reports dyspnea. His level of consciousness is mildly decreased. Management should proceed on the assumption that he has what abnormal rhythm?
1) Sinus tachycardia with LVH
2) Ventricular tachycardia
3) Supraventricular tachycardia with aberrancy
4) Wolff-Parkinson-White syndrome with retrograde conduction