Practice EKG Rhythm Strips 125

Identify the following rhythms.

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Answers

1.

 Agonal rhythm.   The QRS complex is wide and bizzare looking owing to it's ventricular origin.   The rate is less than 20 minute so this qualifies this rhythm as an agonal rhythm.


2.

Atrial paced.  The P waves that follow the atrial paced spike are not very prominent.   There is a significant delay between the atrial spike and the QRS complex.  This is supposed to help reduce the development of a pacemaker induced hypertrophy.   Otherwise, the rhythm is regular.   The rate is 75.  There are upright P waves that are atrial paced in origin.   No ectopy is noted.   PR:  32 sec.   QRS:  .08 sec,   QT:  .32 sec.


3.

Junctional rhythm.  .   Those T waves are tall so I wonder if there was a problem with hyperkalemia.  The rhythm is regular.   The rate is 60.   There are no P waves before each QRS complex.  No ectopic beats are noted.   PR: ---   QRS:  .12 sec,  QT:   .40 sec

4.

 Atrial bigeminy.   The rhythm is irregular.   The rate is 70.   There are upright P waves before each QRS complex.   There are ectopic beats every other beat.   The P waves on the ectopic beats are of differing morphology than the sinus beats.   The PR interval on the ectopic beats is longer than the sinus beats.   PR:  .16 sec,  QRS:  .08 sec,  QT:  .40 sec.


5.

Polymorphic ventricular tachycardia converting to sinus bradycardia