ECG Rhythm Strips 90
Identify the following rhythms.
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Answers
1.
The rhythm is regular with a rate of 53/min. The P are retrograde and immediately follow the QRS complex. The QRS complexes are narrow. No ectopic beats are present. PR: ---, QRS: .08 sec, QT: .40 sec.
2.
The rhythm is irregular with a rate of 66/min. The P waves are upright and precede the QRS complexes. Unifocal PVCs are seen on the latter half of the strip in a trigeminal pattern. PR: .12 sec, QRS: .08 sec, QT: .34 sec.
3.
The rhythm is irregular with a rate of 50/min. The PR interval between the 1st and 2nd QRS complex is 1.48 sec and the PR interval between the 5th and 6th complex is 1.0 sec. Small positive P waves precede each QRS complex. No ectopic beats are noted. PR: .12 sec, QRS: .10 sec, QT: .40 sec.
4.
The rhythm is irregular due to the PVC. The rate is 72/min. The P waves are associated with a QRS complex and are upright and uniform. A single PVC is present. PR: .16 sec, QRS: .08 sec, QT: . 32 sec.
5.
The rhythm is irregular with multiple PVCs. The rate is 100/min. Upright P waves have a corresponding QRS complex. Unifocal PVCs are seen every 4th beat. PR: .16 sec, QRS: .08 sec, QT: .36 sec.
1.
2.
3.
4.
5.
.jpg)
Answers
1.
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| Junctional rhythm |
The rhythm is regular with a rate of 53/min. The P are retrograde and immediately follow the QRS complex. The QRS complexes are narrow. No ectopic beats are present. PR: ---, QRS: .08 sec, QT: .40 sec.
2.
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| NSR with unifocal PVCs |
The rhythm is irregular with a rate of 66/min. The P waves are upright and precede the QRS complexes. Unifocal PVCs are seen on the latter half of the strip in a trigeminal pattern. PR: .12 sec, QRS: .08 sec, QT: .34 sec.
3.
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| Sinus arrhythmia |
The rhythm is irregular with a rate of 50/min. The PR interval between the 1st and 2nd QRS complex is 1.48 sec and the PR interval between the 5th and 6th complex is 1.0 sec. Small positive P waves precede each QRS complex. No ectopic beats are noted. PR: .12 sec, QRS: .10 sec, QT: .40 sec.
4.
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| NSR with a PVC |
The rhythm is irregular due to the PVC. The rate is 72/min. The P waves are associated with a QRS complex and are upright and uniform. A single PVC is present. PR: .16 sec, QRS: .08 sec, QT: . 32 sec.
5.
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| NSR with quadrigeminy |
The rhythm is irregular with multiple PVCs. The rate is 100/min. Upright P waves have a corresponding QRS complex. Unifocal PVCs are seen every 4th beat. PR: .16 sec, QRS: .08 sec, QT: .36 sec.
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