EKG Rhythm Strips 65
Identify the following rhythms.
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Answers
1.
The rhythm is regular at a rate of 100/min. The P waves are upright but they are preceded by an atrial pacer spike. No ectopic beats are noted. There is 60 cycle electrical interference present which makes it difficult to measure the intervals correctly.
2.
The rhythm is regular with a rate of 53/min. The P waves are absent and there are fibrillatory waves noted between the QRS complexes. No ectopic beats are seen. PR: ---, QRS: .16 sec, QT: .44 sec.
3.
The rhythm is regular with a rate of 115/min. There are retrograde P waves present before each QRS complex. No ectopic beats are present. PR: .12 sec, QRS: .08, QT: .28 sec.
4.
The rhythm is regular. The rate is 94/min. The P waves are upright and are associated with a QRS complex. The P waves are wide suggesting left atrial enlargement. No ectopic beats are present. PR: .20 sec, QRS: .12 sec, QT: . 32 sec.
5.
The rhythm is irregular due to the ventricular ectopic beats. The P waves are upright and have a corresponding QRS complex. Two unifocal PVCs are seen. PR: . 12 sec, QRS: .12 sec, QT: .40 sec.
Reviewed 3/6/16
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2.
3.
4.
5.
Answers
1.
.JPG) |
| Paced rhythm but with 60 cycle interference |
The rhythm is regular at a rate of 100/min. The P waves are upright but they are preceded by an atrial pacer spike. No ectopic beats are noted. There is 60 cycle electrical interference present which makes it difficult to measure the intervals correctly.
2.
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| Atrial fibrillation with biventricular paced beats |
The rhythm is regular with a rate of 53/min. The P waves are absent and there are fibrillatory waves noted between the QRS complexes. No ectopic beats are seen. PR: ---, QRS: .16 sec, QT: .44 sec.
3.
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| Junctional tachycardia |
The rhythm is regular with a rate of 115/min. There are retrograde P waves present before each QRS complex. No ectopic beats are present. PR: .12 sec, QRS: .08, QT: .28 sec.
4.
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| Normal sinus rhythm |
The rhythm is regular. The rate is 94/min. The P waves are upright and are associated with a QRS complex. The P waves are wide suggesting left atrial enlargement. No ectopic beats are present. PR: .20 sec, QRS: .12 sec, QT: . 32 sec.
5.
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| Normal sinus rhythm with unifocal PVCs |
The rhythm is irregular due to the ventricular ectopic beats. The P waves are upright and have a corresponding QRS complex. Two unifocal PVCs are seen. PR: . 12 sec, QRS: .12 sec, QT: .40 sec.
Reviewed 3/6/16
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