A 28-year-old woman presents with sudden-onset regular narrow-complex tachycardia at 180 beats per minute. She is haemodynamically stable with normal ...

Question

A 28-year-old woman presents with sudden-onset regular narrow-complex tachycardia at 180 beats per minute. She is haemodynamically stable with normal blood pressure and no chest pain. Vagal manoeuvres fail to terminate the rhythm. What is the most appropriate next step?

Accepted Answer

Administer intravenous adenosine

Answer

Perform immediate synchronised cardioversion

Answer

Start intravenous lidocaine

Answer

Start beta-blocker infusion over several hours

Answer

Observe without treatment

ca-mccqe1 MCQ (SBA): Supraventricular tachycardia

A 28-year-old woman presents with sudden-onset regular narrow-complex tachycardia at 180 beats per minute. She is haemodynamically stable with normal blood pressure and no chest pain. Vagal manoeuvres fail to terminate the rhythm. What is the most appropriate next step?