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Identify the following rhythms. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. Do you want to try another Basic EKG Rhythm Test? Click here Answers 1.     1st degree AV block 2.     2nd degree heart block type II 3.     Atrial paced 4.     Biventricular paced with a multifocal couplet 5.     Normal sinus rhythm with quadrigeminal PVCs 6.     Sinus bradycardia 7.     Accelerated junctional rhythm 8.     Atrial fibri

Identify the following rhythms. 1. 2. 3. 4. 5. Answers 1. Accelerated junctional rhythm The rhythm is regular with a heart rate of 71/min.   The P waves are absent.   No ectopic beats are noted.   The QRS complex is narrow.   PR:  ---,  QRS:  .08 sec,  QT:  .40 sec. 2. Multifocal atrial tachycardia The rhythm is irregular with ventricular rate of 150/min.    P waves are upright but are not uniform in appearance.   There is also some variability in the PR interval.   No ectopic beats are noted.  PR:  .16 sec,  QRS:  .08 sec,  QT:  .32 sec. 3. Atrial flutter The rhythm is regular with a rate of 71/min.   There flutter waves seen between the QRS complexes.  No ectopic beats are noted.  PR:  ---,  QRS:  .08 sec,  QT:  undetermined. 4. Atrial paced The rhythm is regular with a heart rate of 68/min.   The P waves are preceded by an atrial pacing stimulus.   No ectopic beats are seen.   PR:  .20

Identify the following rhythms. 1. 2. 3. 4. 5. Answers 1. 2nd degree heart block type II The rhythm is irregular with a ventricular rate of 20/min and an atrial rate of  75/min.   The P waves are upright but not all of them are paired with a QRS complex.  No ectopic beats are noted.  The QRS complex is wide.   PR:  .20 sec,  QRS:  .12 sec,  QT:  .64 2. 2nd degree heart block type I The rhythm is irregular with a heart rate of 50/min.   The P waves are upright and uniform.    There is a nonconducted P wave after the 2nd complex.    The PR interval progressively lengthens over successive beats.   PR:  .20/.24/.32sec,  QRS:  .08 sec,  QT:  .40 sec 3. 3rd degree heart block The rhythm is regular with a ventricular rate of 30/min and an atrial rate of 100/min.   The P waves are upright and uniform but they are not associated with a QRS complex.   The QRS complex is wide suggesting a ventricular escape o