Practice EKG Strips 395

Identify the following rhythms.

1.

a. Wandering atrial pacemaker with a PVC
b. Ventricular tachycardia with a PVC
c. Sinus tachycardia
d. Junctional tachycardia

2.

a. Sinus tachycardia
b. Ventricular tachycardia
c. Atrial fibrillation with RVR
d. Supraventricular tachycardia

3.

a. Accelerated idioventricular rhythm
b. Ventricular tachycardia
c. Ventricular fibrillation
d. Sinus tachycardia with aberrancy

4.

a. Atrial fibrillation
b. Ventricular fibrillation
c. Multifocal atrial tachycardia
d. Torsades de pointes

5.

a. Atrial fibrillation with RVR
b. Supraventricular tachycardia
c. Ventricular tachycardia
d. Sinus tachycardia


Answers
1. c. Sinus tachycardia. Very distinct and uniform P waves are seen. The presence of upright P waves rules out answers B and D. The uniformity of the P waves rules out answer A. In MAT there are at least three P waves of varying morphology or shape. The rhythm is regular with a rate of 136 bpm. The P waves are paired with a QRS complex. The QRS complexes are narrow. There is also some ST-T depression. No ectopic beats are seen.
2. d. Supraventricular tachycardia. The rhythm is regular with a rate of of 166 bpm. No P waves are readily identified. The P wave looking complexes are actually T waves. The QRS complex is wide. No ectopic beats are seen. PR: ---, QRS: 10 sec, QT: .36 sec.
3. b. Ventricular tachycardia. The rhythm is regular with a rate of 166 bpm. No P waves are seen. The QRS complexes are wide, .16 sec.
4. b. Ventricular fibrillation
5. a. Atrial fibrillation with RVR. The rhythm is very irregular. The rate is about 130 bpm. No P waves are seen. The QRS complexes are narrow. No ectopic beats are identified.