Question

A 45-year-old woman presents with palpitations. ECG shows narrow-complex regular tachycardia at 180 bpm with absent P waves consistent with AVNRT. She is haemodynamically stable. First-line acute treatment?

Accepted Answer

Adenosine rapid IV bolus

Answer

Synchronized DC cardioversion

Answer

Amiodarone IV infusion

Answer

Metoprolol slow IV bolus

Answer

Diltiazem slow IV bolus

Practice question

A 45-year-old woman presents with palpitations. ECG shows narrow-complex regular tachycardia at 180 bpm with absent P waves consistent with AVNRT. She is haemodynamically stable. First-line acute treatment?