The first ECG strip below shows a P ... more examples of rhythms other than sinus rhythm: atrial fibrillation, atrial flutter and multifocal atrial tachycardia. Note that when atrioventricular ...

Sinus tachycardia is recognized on an ECG with a normal upright P wave in lead II preceding every QRS complex. This indicates that the pacemaker is coming from the sinus node and not elsewhere in ...