Sinus Rhythm

Sinus Rhythm is the pattern of electrical activity that is seen on an electrocardiogram (ECG or EKG) when the heart is beating normally. Normal sinus rhythm has waves in the cycle that are named P, QRS and T. These waves correspond to events in the cardiac cycle. The ECG is the most important and definitive noninvasive diagnostic test for cardiac arrhythmias. An arrhythmia is characterized on an ECG as a deviation from the normal sinus rhythm in rate, regularity or as a different pattern of activation of the cardiac muscle.


©2022 All rights reserved. creates and licenses medical illustrations and animations for educational use. Our goal is to increase your understanding of medical terminology and help communication between patients, caregiver and healthcare professionals. The content in the Media Library is for your information and education purposes only. The Media Library is not a substitute for professional medical advice, diagnosis or treatment for specific medical conditions.


Related Topics

All Topics