EKG Rhythm Strip Quiz 18

Identify the following rhythms

1.

a. NSR with a unifocal PVCs

b. Sinus tachycardia with multifocal PJCs

c. Sinus bradycardia with multiform PVCs

d. Atrial fibrillation with uniform PVCs

e. Junctional rhythm with a multifocal PACs

2.

 a. Atrial fibrillation with a PAC

b. Sinus arrhythmia with PVC

c. Atrial flutter with a PVC

d. Mobitz II with a PVCs

e. Sinus bradycardia with a PVC

3.

 a. NSR with PJCs

b. Sinus tachycardia with PJCs

c. Sinus tachycardia with PVCs

d. Sinus arrhythmia with PJCs

e. Sinus rhythm with PACs

4.

a. NSR with PVCs
b. Sinus tachycardia with PVCs

c. Sinus bradycardia with PJCs

d. Sinus arrhythmia with PJCs

e. Sinus rhythm with PACs

5.

a. Sinus arrhythmia with uniform PACs

b. Sinus tachycardia bigeminal PVCs

c. Sinus rhythm with quadrigeminal PVCs

d. Sinus rhythm with multiform PVCs

e. Sinus bradycardia with unifocal PJC

6.

a. NSR with multiform PVCs

b. Sinus tachycardia with unifocal PVCs

c. Sinus bradycardia with multifocal PJCs

d. 1st degree AV block with multifocal  PVCs

e. Sinus rhythm with unifocal PACs

7.

a. Sinus rhythm with 4 beat run of VT

b. Sinus arrhythmia with consecutive PJCs

c. Sinus tachycardia with unifocal PACs

d. Sinus rhythm with multiform PACs

e. Sinus tachycardia with 4 beat run VT

8.

 a. NSR with multiform PVCs

b. 1^st degree block with multifocal PVCs

c. Sinus arrhythmia with multifocal PVCs

d. Sinus rhythm with unifocal PACs

e. 2^nd degree AV block type II with unifocal PJCs

9.

a. Sinus rhythm with multifocal PVCs

b. Sinus arrhythmia with uniform PJCs

c. Sinus tachycardia with unifocal PVCs

d. Sinus rhythm with uniform PVCs

e. Sinus bradycardia with unifocal PVC

10.

a.  NSR with a PAC and PJC

b.  Sinus arrhythmia

c.  NSR with PACs

d.  NSR with a PAC and some escape beats

e.  NSR with sinus pauses

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Answers


1.   d. Atrial fibrillation with uniform PVCs
2.   c. Atrial flutter with a PVC
3.   b. Sinus tachycardia with PJCs (note:  analysis is based upon the fact that there is no change in the character or morphology of the T waves that precede the premature beat.  At this rate the premature P waves of a PAC would be hidden within the T wave of the preceding beat and would thus change the amplitude of that T wave.  By comparison, in rhythm strip 4 you can see how the premature beat changes the characteristic of the preceding T wave.)
4.   e. Sinus rhythm with PACs
5.   c. Sinus rhythm with quadrigeminal PVCs
6.   a. NSR with multiform PVCs
A small variation in the morphology exists.
7.   a. Sinus rhythm with 4 beat run of VT
8.   b. 1^st degree block with multifocal PVCs
9.   c. Sinus tachycardia with unifocal PVCs
10. d.   NSR with a PAC and some escape beats   Note that the first escape beat occurs late in the cardiac rhythm and that the P wave is different from the other sinus beats. The P wave is actually merged with the R wave of the QRS complex giving it a delta wave appearance (Delta waves are found in what rhythm?)  The second late beat does not have a P wave.  These escape mechanisms take over when the sinus node fails to fire.  See strip below.

Reviewed on 6/3/13, 3/2/16