Question

A 34-year-old woman presents with intermittent palpitations, often associated with light-headedness. An ECG taken during an episode shows a regular narrow complex tachycardia at a rate of 180 bpm. Vagal manoeuvres (Valsalva) terminate the episode. What is the most likely diagnosis?

Accepted Answer

Atrioventricular nodal re-entrant tachycardia (AVNRT)

Answer

Atrial fibrillation

Answer

Atrial flutter

Answer

Ventricular tachycardia

Answer

Sinus tachycardia

Practice question

A 34-year-old woman presents with intermittent palpitations, often associated with light-headedness. An ECG taken during an episode shows a regular narrow complex tachycardia at a rate of 180 bpm. Vagal manoeuvres (Valsalva) terminate the episode. What is the most likely diagnosis?