EKG Rhythm Strips 57
Identify the following rhythms.
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Answers
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The rhythm is irregular. The rate is 90/min. There are flutter/fibrillatory waves between the QRS complexes. Two unifocal PVCs are seen. PR: ---, QRS: .08 sec, QT: .28 sec.
2.
The rhythm is irregular. The rate is 70/min. Small P waves are present and are associated with a QRS complex. Except for the 4th and 7th complexes, dual pacing is present. PR: .16 sec, QRS: .16 sec, QT: .44 sec
3.
The rhythm is irregular with a rate of 50/min. The P waves are upright and have a corresponding QRS complex. No ectopic beats are noted. There is a long pause present. PR: . 20 sec, QRS: .08 sec, QT: .48 sec.
4.
The rhythm is regular with a rate of 125/min. There are small P waves present before each QRS complex. No ectopic beats are noted. The T waves is inverted. PR: .12 sec, QRS: .08 sec, QT: .28 sec.
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The rhythm is irregular due to the PVCs. The rate is 60/min The P waves are upright and associated with a QRS complex. The PR interval is prolonged. There are unifocal PVCs every fourth beat. A compensatory pause follows each PVC. PR: .28 sec, QRS: .08 sec, QT: .44 sec.
Reviewed 3/2/16
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Answers
1.
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| Atrial fibrillation with unifocal PVCs |
The rhythm is irregular. The rate is 90/min. There are flutter/fibrillatory waves between the QRS complexes. Two unifocal PVCs are seen. PR: ---, QRS: .08 sec, QT: .28 sec.
2.
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| Demand AV pacing |
The rhythm is irregular. The rate is 70/min. Small P waves are present and are associated with a QRS complex. Except for the 4th and 7th complexes, dual pacing is present. PR: .16 sec, QRS: .16 sec, QT: .44 sec
3.
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| Sinus bradycardia with sinus exit block |
The rhythm is irregular with a rate of 50/min. The P waves are upright and have a corresponding QRS complex. No ectopic beats are noted. There is a long pause present. PR: . 20 sec, QRS: .08 sec, QT: .48 sec.
4.
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| Sinus tachycardia with T wave inversion |
The rhythm is regular with a rate of 125/min. There are small P waves present before each QRS complex. No ectopic beats are noted. The T waves is inverted. PR: .12 sec, QRS: .08 sec, QT: .28 sec.
5.
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| 1st degree block with ventricular quadrigeminy |
The rhythm is irregular due to the PVCs. The rate is 60/min The P waves are upright and associated with a QRS complex. The PR interval is prolonged. There are unifocal PVCs every fourth beat. A compensatory pause follows each PVC. PR: .28 sec, QRS: .08 sec, QT: .44 sec.
Reviewed 3/2/16
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