Ventricular asystole

Wandering atrial pacemaker

Sinus bradycardia with one PAC

Normal sinus rhythm

Second-degree AV block, Mobitz 1

Atrial tachycardia

Atrial tachycardia

Normal sinus rhythm with first-degree AV block

Ventricular asystole

Normal sinus rhythm with bundle-branch block

Normal sinus rhythm with sinus block

Ventricular fibrillation (fine)

Wandering atrial pacemaker Family

Atrial flutter with 2:1 AV conduction

Atrial fibrillation with controlled ventricular rate

Third-degree AV block

Sinus bradycardia with one PVC

Sinus tachycardia

Normal sinus rhythm with one nonconducted PAC

Accelerated idioventricular rhythm

Junctional rhythm

Normal sinus rhythm with two unifocal PVCs

Atrial flutter with 4:1 AV conduction

Normal sinus rhythm with first-degree AV block

Normal sinus rhythm with two multiple PVCs

Sinus arrhythmia

Idioventricular rhythm

Sinus tachycardia

Ventricular tachycardia (monomorphic)

Normal sinus rhythm with 3-beat run of ventricular tachycardia

Accelerated junctional rhythm

Normal sinus rhythm with two nonconducted PACs

Third-degree AV block

Second-degree AV block, Mobitz II with variable AV conduction

Normal sinus rhythm with two PACs

Normal sinus rhythm with bundle-branch block

Atrial tachycardia

Second-degree AV block, Mobitz I

Wandering atrial pacemaker

Normal sinus rhythm with 3-beat run accelerated idioventricular rhythm (AIVR)

Atrial flutter with variable AV conduction

Ventricular fibrilation (course)

Normal sinus rhythm with one PJC

Sinus arrhythmia with a bradycardia rate

Sinus bradycardia

Sinus bradycardia with sinus arrest

Junction tachycardia

Atrial fibrillation with uncontrolled ventricular rate

Second-degree AV block, Mobitz II with 3:1 Av condition