Differentiation between supraventricular and ventricular rhythm is made on the basis of the __________.

Question

Quizplus · Accepted Answer

Supraventricular rhythms originate above the ventricles and are characterized by the presence of P waves and a narrow QRS complex. Ventricular rhythms, on the other hand, originate in the ventricles and are characterized by the absence of P waves and a widened QRS complex. Therefore, the duration (width) of the QRS complex and the presence or absence of P waves are the key factors in differentiating between supraventricular and ventricular rhythm. The other options listed (appearance of the ST segment, amplitude of the U wave, duration of the PR interval) are not as relevant for this differentiation.

Differentiation Between Supraventricular and Ventricular Rhythm Is Made on the Basis