Practice EKG Rhythm Strips 140
Identify the following rhythms.
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Answers
1.
The rhythm is irregular due to the PVC. The rate is 70/min. No P waves are present. A single PVC begins the rhythm strip. PR: ---, QRS: .08 sec, QT: .44 sec.
2.
The rhythm is regular with a rate of 62. Pacer spikes precede each P wave (seen best in the V1 lead). No ectopic beats are seen. PR: .24 sec, QRS: ..12 sec, QT: .40 sec.
3.
The rhythm is regular. The rate is 35/min. No P waves are present. The QRS complex is wide and there is down slopping of the ST segment. PR: ---, QRS: .16 sec, QT: .48 sec.
4.
The rhythm is irregular with a rate of 70/min. The P waves are upright. Two multifocal PVCs are seen, the 2nd and 4th complexes. PR: .12 sec, QRS: .08 sec, QT: .44 sec.
5.
The rhythm is regular with a rate of 50/min. The P waves are uniform and upright. No ectopic beats are present. PR: .16 sec, QRS: .10 sec, QT: .48 sec.
1.
2.
3.
4.
5.
Answers
1.
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| Accelerated junctional rhythm with a PVC |
The rhythm is irregular due to the PVC. The rate is 70/min. No P waves are present. A single PVC begins the rhythm strip. PR: ---, QRS: .08 sec, QT: .44 sec.
2.
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| Atrial paced |
The rhythm is regular with a rate of 62. Pacer spikes precede each P wave (seen best in the V1 lead). No ectopic beats are seen. PR: .24 sec, QRS: ..12 sec, QT: .40 sec.
3.
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| Idioventricular rhythm |
The rhythm is regular. The rate is 35/min. No P waves are present. The QRS complex is wide and there is down slopping of the ST segment. PR: ---, QRS: .16 sec, QT: .48 sec.
4.
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| Normal sinus rhythm with multifocal PVCs |
The rhythm is irregular with a rate of 70/min. The P waves are upright. Two multifocal PVCs are seen, the 2nd and 4th complexes. PR: .12 sec, QRS: .08 sec, QT: .44 sec.
5.
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| Sinus bradycardia |
The rhythm is regular with a rate of 50/min. The P waves are uniform and upright. No ectopic beats are present. PR: .16 sec, QRS: .10 sec, QT: .48 sec.
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