Practice EKG Rhythm Strips 191

Identify the following rhythms.


1.

2.

3.

4.

5.

Answers


1.

Accelerated junctional rhythm

The rhythm is regular with a rate of 75/min.   There are retrograde P waves that follow the QRS complexes.   No ectopy is seen.   PR:  ---,  QRS:  .14 sec,  QT:  .44 sec.


2.

Atrial fibrillation with bigeminal PVCs

The rhythm is irregular.   The rate is 80/min.   The P waves are absent but fibrillation is seen between the QRS complexes.   Unifocal PVCs are seen every other beat.   PR:  ---,  QRS:
.10 sec,  QT:  .32 sec.


3.

Complete heart block

The rhythm is regular with a ventricular rate of 36/min and an atrial rate of 88/min.   The P waves and the QRS complexes are not associated.  The QRS complexes are wide indicating a ventricular escape mechanism.   PR:  ---,  QRS:  .12 sec,  QT:  .60 sec


4.

Atrial fibrillation with demand ventricular paced beats 

The rhythm is irregular with a rate of 60/min.   No P waves are seen.   The first three complexes are the patient's rhythm the last three complexes are ventricular paced.   No ectopic beats are seen. PR:  ---,  QRS:  .12 sec,  QT:  .42 sec.


5.

NSR with multifocal PVCs

The rhythm is irregular with a heart rate of 70/min.   The P waves are upright and associated with a QRS complex.   There are three multifocal PVCs present.   PR:  .18 sec,  QRS:  .08 sec,  QT:  .42 sec.