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.

To understand the difference between normal sinus rhythm and sinus arrhythmia, it's best to start by exploring the role of an electrocardiogram (ECG or EKG ... symptoms of an abnormal heart ...

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 ...

If you're scheduled to have an electrocardiogram (EKG), you ... known as "normal sinus rhythm:" Your heart is functioning ...

How often should I take an ECG reading? Provided your heart gets a normal sinus rhythm ... The PPG sensor also continuously scans for abnormal rhythms, including high and low heart rates.

showing six rhythm strips simultaneously (leads I, II, III, aVR, aVL and aVF). We excluded the dog from surgery due to its abnormal ECG and the increased risk of potentially lethal arrhythmias ...