Practice EKG Rhythm Strips 194
Identify the following rhythms.
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Answers
1.
The rhythm is irregular due to the PVCs. The heart rate is 70/min. The P waves are wide, upright, and have a corresponding QRS complex. The wide P waves suggests left atrial enlargement. Multifocal PVCs are present. PR: .20 sec, QRS: .08 sec, QT: .40 sec.
2.
The rhythm is irregular with a ventricular rate of 70/min. The R-R interval between the 1st and 2nd complex is 0.8 sec and the R-R interval between the 5th and 6th complexes is 1.0 sec. The P waves are upright and uniform with a fixed PR interval. No ectopic beats are noted. PR: .16 sec, QRS: .08 sec, QT: .84 sec.
3.
The rhythm is regular with a heart rate of 47/min. The P waves are positive and associated with a QRS complex. No ectopic beats are seen. PR: .16 sec, QRS: .08 sec, QT: .48 sec.
4.
The rhythm is regular and the heart rate is 167/min. No P waves are seen. No ectopic beats are seen. PR: ---, QRS: .10 sec, QT: .24 sec.
5.
The rhythm is regular with a rate of 60/min. Flutter waves are seen in between the QRS complexes. A ventricular pacer spike precedes each QRS complex. PR: ---, QRS: .16 sec, QT: .40 sec.
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2.
3.
4.
5.
Answers
1.
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| NSR with multifocal PVCs |
The rhythm is irregular due to the PVCs. The heart rate is 70/min. The P waves are wide, upright, and have a corresponding QRS complex. The wide P waves suggests left atrial enlargement. Multifocal PVCs are present. PR: .20 sec, QRS: .08 sec, QT: .40 sec.
2.
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| Sinus arrhythmia |
The rhythm is irregular with a ventricular rate of 70/min. The R-R interval between the 1st and 2nd complex is 0.8 sec and the R-R interval between the 5th and 6th complexes is 1.0 sec. The P waves are upright and uniform with a fixed PR interval. No ectopic beats are noted. PR: .16 sec, QRS: .08 sec, QT: .84 sec.
3.
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| Sinus bradycardia |
The rhythm is regular with a heart rate of 47/min. The P waves are positive and associated with a QRS complex. No ectopic beats are seen. PR: .16 sec, QRS: .08 sec, QT: .48 sec.
4.
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| Supraventricular tachycardia |
The rhythm is regular and the heart rate is 167/min. No P waves are seen. No ectopic beats are seen. PR: ---, QRS: .10 sec, QT: .24 sec.
5.
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| Atrial flutter with ventricular paced beats |
The rhythm is regular with a rate of 60/min. Flutter waves are seen in between the QRS complexes. A ventricular pacer spike precedes each QRS complex. PR: ---, QRS: .16 sec, QT: .40 sec.
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