Practice EKG Rhythm Strips 186

Identify the following rhythms.


1.

2.

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4.

5.

Answers


1.

2nd degree AV block type I

The rhythm is irregular with a rate of 50/min.  The P-P interval is regular while the R-R interval is irregular.  The P waves are upright and uniform.   There is a nonconducted P wave that follows the 3rd complex.   No ectopic beats are noted.   PR:  .12/.24/.32 sec,  QRS:  .08 sec,  QT:  .40 sec.


2.

Ventricular paced with multifocal couplets

The rhythm is irregular due to the PVCs.   The paced rate is 88/min.   Upright P waves are paired with a QRS complex.   There are two multifocal couplets present.  PR:  .20 sec,  QRS:  .16 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 90/min.  The P waves are upright and uniform but are unassociated with a QRS complex.   PR:  ---,  QRS:  .16 sec,  QT: .40 sec.


4.

Idioventricular rhythm

The rhythm is regular with a rate of 40/min.   No P waves are present.   No ectopic beats are seen. The QRS is wide indicating that the rhythm is of ventricular origin.   PR:  ---,  QRS:  .16 sec,  QT; .40 sec.


5.

Ventricular tachycardia

The rhythm is regular with a rate of 167/min.   No P waves are seen.   The QRS complex is uniform and monomorphic.