EKG Rhythm Strips: Atrial Rhythms

Identify the following rhythms.

1.

2

3.

 4.

5.

Answers
1.

Atrial bigeminy

The rhythm is regular except for the premature atrial contractions which occur every other beat.  The rate is 100 beats/min.  There is an upright P wave for each sinus QRS complex.  The P waves on the ectopic beats are small in comparison.  PR interval  .10, QRS measures 0.08 sec, QT .36 sec.
2.

Supraventricular tachycardia

Supraventricular tachycardia.   The rhythm is regular.   The rate is 150 beats/min.   No P waves are evident. The QRS complex is 0.6sec,  QT 0.28 sec.   No ectopy is present.
3.

Atrial fibrillation with rapid ventricular response

Atrial fibrillation with rapid ventricular response.  The rhythm is irregular.  The rate is between 125-150 beats/min.  There are no identifiable P waves, just fibrillatory waves.  The QRS is .08 sec. and the QT interval is 0.24sec.   There are no ectopic beats.
4.

Atrial tachycardia

Atrial tachycardia.   The rhythm appears regular.   The rate is 166.   There are upright P wave with each QRS complex.   The PRI: .10 sec,  QRS:  .08,  QT: .24 sec.  There are no ectopic beats.
5.

Atrial flutter with variable rate

Atrial flutter with variable rate.   The rhythm is irregular.   The rate is about 60.   There are multiple flutter waves between each QRS complex.   There are no ectopic beats. 



Reviewed 3/1/16