Practice EKG Rhythm Strips 231
Identify the following rhythms.
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Answers
1.
The rhythm is irregular with a rate of 70/min. The P waves are upright and uniform. There is progressive elongation of the PR interval. A dropped beat is noted after the 5th complex. No ectopic beats are noted. PR: .24/.28./.32 sec. QRS: .08 sec. QT: .44 sec. Interpretation: 2nd degree AV block type I
2.
The rhythm is regular. The heart rate is 47/min. The P waves are uniform, upright, and precede the QRS complexes. There are no ectopic beats. PR: .18 sec, QRS: .08 sec, QT: .44 sec. Interpretation: Sinus bradycardia
3.
This is artifact caused by a loose lead. It may have the appearance of a coarse ventricular fibrillation in lead II but lead V1 show that an organized rhythm is present.
4.
The rhythm is regular with a rate of 83/min. There are flutter waves seen between the QRS complexes. The QRS complexes are narrow and there are not any ecoptic beats. PR: ---, QRS: .08 sec. QT: .20 sec. Interpretation: Atrial flutter
5.
The rhythm is regular and slow with a rate of 39/min. No P waves are seen. The QRS complex is wide so this points toward a ventricular escape mechanism as the underlying cause of the rhythm. PR: ---, QRS: .12 sec, QT: .42 sec. Interpretation: Idioventricular rhythm
1.
2.
3.
4.
5.
Answers
1.
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| 2nd degree AV block type I |
The rhythm is irregular with a rate of 70/min. The P waves are upright and uniform. There is progressive elongation of the PR interval. A dropped beat is noted after the 5th complex. No ectopic beats are noted. PR: .24/.28./.32 sec. QRS: .08 sec. QT: .44 sec. Interpretation: 2nd degree AV block type I
2.
 |
| Sinus bradycardia |
The rhythm is regular. The heart rate is 47/min. The P waves are uniform, upright, and precede the QRS complexes. There are no ectopic beats. PR: .18 sec, QRS: .08 sec, QT: .44 sec. Interpretation: Sinus bradycardia
3.
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| Loose lead artifact |
This is artifact caused by a loose lead. It may have the appearance of a coarse ventricular fibrillation in lead II but lead V1 show that an organized rhythm is present.
4.
 |
| Atrial flutter |
The rhythm is regular with a rate of 83/min. There are flutter waves seen between the QRS complexes. The QRS complexes are narrow and there are not any ecoptic beats. PR: ---, QRS: .08 sec. QT: .20 sec. Interpretation: Atrial flutter
5.
 |
| Idioventricular rhythm |
The rhythm is regular and slow with a rate of 39/min. No P waves are seen. The QRS complex is wide so this points toward a ventricular escape mechanism as the underlying cause of the rhythm. PR: ---, QRS: .12 sec, QT: .42 sec. Interpretation: Idioventricular rhythm
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