A 28-year-old man presents with a 2 hours’ history of rapid palpitations. He feels light headed but is
otherwise well. On examination, he has a pulse of 170 beats/minute, regular. His blood pressure is 100/68
mmHg. He had 2 similar episodes of feeling palpitations in the past 3 months. What is the SINGLE most
likely rhythm disturbance?
A.
Supraventricular tachycardia
B.
Ventricular fibrillation
C.
Ventricular tachycardia
D.
Ectopic beats
E.
Atrial fibrillation