Q. Which of the following is not true about atrial tachycardia? Ventricles are not an essential part of the circuit in atrial tachycardia Several toxins and drugs can cause atrial tachycardia by triggered activity Morphology of p wave on ECG can help us in determining the focus of atrial tachycardia Constant rate/cycle length is a hallmark feature of atrial tachycardias Time's up Related