Medicine All of the following features can differentiate between ventricular tachycardia and supraventricular tachycardia except- A QRs < 0.14 seconds B Ventricular rate >160/min C Variable first hea sound D Relieved by carotid sinus massage 💡 Explanation All of the following features can differentiate between ventricular tachycardia and supraventricular tachycardia except- ✓ Correct Answer: B. Ventricular rate >160/min