Verywell Health on MSN9mon
Sinus Arrhythmia: What’s Normal vs. Irregular
To understand the difference between normal sinus rhythm and sinus arrhythmia, it's best to start by exploring the role of an ...
Healio3y
Normal Sinus Rhythm
Sinus rhythm (a.k.a. normal sinus rhythm) refers to the normal heart beat originating from the sinoatrial node. This is manifested as an upright P wave in lead II of the ECG. Sinus bradycardia ...
Healio7y
Determining Rhythm
This results in an upright P wave in lead II on the ECG. If there is a P wave before every QRS complex, and it has a sinus morphology, then normal sinus rhythm, or NSR, is said to be present.
Nature6y
Diagnosis | Idiopathic paroxysmal ventricular bigeminy and premature ventricular complexes
They are characterized by premature, wider-than-normal ... sinus depolarization would suppress it 2,3. Figure 2: An ECG obtained from a beagle dog 21 days later, showing six rhythm strips ...