Practice EKG Rhythm Strips 213
Identify the following rhythms.
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Answers
1.
The rhythm is irregular with a rate of 60/min. No P waves are present. Fibrillation and flutter waves are present between the QRS complexes. The 5th complex is a PVC. There is some ST depression in lead II. PR: ---, QRS: .08 sec, QT: .36 sec. Interpretation: Atrial fibrillation with a PVC
2.
The rhythm is regular. The heart rate is 48/min. No P waves are seen. The QRS complex is wide suggesting a ventricular origin for this rhythm. No ectopic beats are noted. PR: ---, QRS: .12 sec, QT: .36 sec. Interpretation: Accelerated idioventricular rhythm.
3.
The rhythm is irregular due to the PVCs. The rate is 90/min. There are upright, uniform P waves present before each sinus beat. A PVC triplet is present. PR: .16 sec, QRS: .08 sec, QT: .36 sec. Interpretation: NSR with a PVC triplet
4.
The rhythm is irregular. The rate is 60/min. There are uniform, upright P waves present. A PVC is present every third beat, trigeminy. PR: .20 sec, QRS: .10 sec, QT: .36 sec. Interpretation: Normal sinus rhythm with trigeminal PVCs
5.
The rhythm is regular. The heart rate is 68/min. The P waves are associated with a QRS complex and are positive and uniform. A ventricular pacer spike precedes each QRS complex. PR: .20 sec, QRS: .20 sec, QT: .48 sec. Interpretation: Ventricular paced
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Answers
1.
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| Atrial fibrillation with a PVC |
The rhythm is irregular with a rate of 60/min. No P waves are present. Fibrillation and flutter waves are present between the QRS complexes. The 5th complex is a PVC. There is some ST depression in lead II. PR: ---, QRS: .08 sec, QT: .36 sec. Interpretation: Atrial fibrillation with a PVC
2.
The rhythm is regular. The heart rate is 48/min. No P waves are seen. The QRS complex is wide suggesting a ventricular origin for this rhythm. No ectopic beats are noted. PR: ---, QRS: .12 sec, QT: .36 sec. Interpretation: Accelerated idioventricular rhythm.
3.
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| NSR with a PVC triplet |
The rhythm is irregular due to the PVCs. The rate is 90/min. There are upright, uniform P waves present before each sinus beat. A PVC triplet is present. PR: .16 sec, QRS: .08 sec, QT: .36 sec. Interpretation: NSR with a PVC triplet
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| Normal sinus rhythm with trigeminal PVCs |
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| Ventricular paced |
The rhythm is regular. The heart rate is 68/min. The P waves are associated with a QRS complex and are positive and uniform. A ventricular pacer spike precedes each QRS complex. PR: .20 sec, QRS: .20 sec, QT: .48 sec. Interpretation: Ventricular paced
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