Practice EKG Rhythm Strips 189
Identify the following rhythms.
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Answers
1.
The rhythm is irregular with a ventricular rate of 50/min. No P waves are seen but there is fibrillatory activity between the QRS complexes. No ectopic beats are seen. PR: ---, QRS: .08 sec, QT: .42 sec.
2.
The rhythm is irregular with a rate of 70/min. The P waves are upright, uniform, and paired with a QRS complex. There are PVCs every other beat. PR: .20 sec, QRS: .12 sec, QT: .44 sec
3.
The rhythm is irregular. The rate is 70/min. No P waves are present. There is a single PVC present, the 5th complex. The 1st and 6th complexes are ventricular paced beats while the remaining complexes are the patient's own complexes. PR: ---, QRS: .12 sec, QT: .40 sec.
4.
The rhythm is irregular with a heart rate of 80/min. There are upright P waves associated with the QRS complexes. The P waves are split and wide suggesting left atrial enlargement. Unifocal PVCs are seen singularly and in a couplet. A PAC follows the couplet. PR: .22 sec, QRS: .08 sec, QT: .38 sec.
5.
The rhythm is irregular with a run of ventricular tachycardia. The QRS complex is wide with an underlying rate of 166/min. No P waves are present. There may be P waves but they are fused with the T wave of the preceding complex. PR:---, QRS: .16 sec, QT: .36 sec.
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2.
3.
4.
5.
Answers
1.
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| Atrial fibrillation with slow ventricular response |
The rhythm is irregular with a ventricular rate of 50/min. No P waves are seen but there is fibrillatory activity between the QRS complexes. No ectopic beats are seen. PR: ---, QRS: .08 sec, QT: .42 sec.
2.
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| NSR with ventricular bigeminy |
The rhythm is irregular with a rate of 70/min. The P waves are upright, uniform, and paired with a QRS complex. There are PVCs every other beat. PR: .20 sec, QRS: .12 sec, QT: .44 sec
3.
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| Atrial fibrillation with ventricular demand pacing and a PVC |
The rhythm is irregular. The rate is 70/min. No P waves are present. There is a single PVC present, the 5th complex. The 1st and 6th complexes are ventricular paced beats while the remaining complexes are the patient's own complexes. PR: ---, QRS: .12 sec, QT: .40 sec.
4.
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| 1st degree AV block with a couplet and unifocal PVCs |
The rhythm is irregular with a heart rate of 80/min. There are upright P waves associated with the QRS complexes. The P waves are split and wide suggesting left atrial enlargement. Unifocal PVCs are seen singularly and in a couplet. A PAC follows the couplet. PR: .22 sec, QRS: .08 sec, QT: .38 sec.
5.
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| Wide complex tachycardia with run of VT |
The rhythm is irregular with a run of ventricular tachycardia. The QRS complex is wide with an underlying rate of 166/min. No P waves are present. There may be P waves but they are fused with the T wave of the preceding complex. PR:---, QRS: .16 sec, QT: .36 sec.
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