Which term denotes normal sinus rhythm?

Which term denotes normal sinus rhythm?

• A. Murmur
• B. T-wave
• C. QRS complex
• D. NSR

Answer: (D)

Normal sinus rhythm is the standard heart rhythm that starts at the sinoatrial node and follows the normal conduction pathway, producing a P wave before every QRS complex, with a stable PR interval and a typical rate. The term used to denote this normal rhythm is normal sinus rhythm, abbreviated NSR. A murmur is an abnormal heart sound from turbulent flow, not a rhythm. The T-wave is a waveform representing ventricular repolarization on the ECG, not a rhythm label. The QRS complex reflects ventricular depolarization on the ECG, but it itself isn’t the name of the rhythm. So the term that denotes normal sinus rhythm is NSR.

Normal sinus rhythm is the standard heart rhythm that starts at the sinoatrial node and follows the normal conduction pathway, producing a P wave before every QRS complex, with a stable PR interval and a typical rate. The term used to denote this normal rhythm is normal sinus rhythm, abbreviated NSR. A murmur is an abnormal heart sound from turbulent flow, not a rhythm. The T-wave is a waveform representing ventricular repolarization on the ECG, not a rhythm label. The QRS complex reflects ventricular depolarization on the ECG, but it itself isn’t the name of the rhythm. So the term that denotes normal sinus rhythm is NSR.