EKG Rhythm Strips 36
Identify the following rhythms
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Answers
1.
The rhythm is irregular with a heart rate of 78/min. The P waves are upright, uniform and associated with a QRS complex. Two unifocal PVCs are seen. PR: .12 sec, QRS: .08 sec, QT: .44 sec.
2.
The rhythm is regular with a rate of 44/min. The P waves are uniform and are paired with a QRS complex. The P waves are wide and slightly notched suggesting biatrial enlargement. No ectopic beats are noted. A U wave follows each T wave.PR: .16 sec, QRS: .10 sec, QT: .56 sec.
3.
The rhythm is irregular with a ventricular rate of 156/min. The P waves are absent but there appears to be some fibrillatory waves in between some of the QRS complexes. No ectopic beats are seen. PR: ---, QRS: .14 sec, QT: . 32 sec.
4.
The rhythm is irregular with a rate of 120/min. The P waves are upright and precede a QRS complex. The morphology of the P waves and the PR interval varies on some beats, for instance the 2nd, 4th, and 6th complexes. There must be at least 3 different P waves for the rhythm to meet the criteria for MAT. There are multiple PACs present. PR: .12 sec, QRS: .08 sec, QT: ---
5.
The rhythm is irregular. The morphology and rate of the QRS changes from an organized looking complex to one that is less organized. No P waves are seen.
Reviewed on 3/2/16
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5.
Answers
1.
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| NSR with unifocal PVCs |
The rhythm is irregular with a heart rate of 78/min. The P waves are upright, uniform and associated with a QRS complex. Two unifocal PVCs are seen. PR: .12 sec, QRS: .08 sec, QT: .44 sec.
2.
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| Sinus bradycardia with a U wave |
The rhythm is regular with a rate of 44/min. The P waves are uniform and are paired with a QRS complex. The P waves are wide and slightly notched suggesting biatrial enlargement. No ectopic beats are noted. A U wave follows each T wave.PR: .16 sec, QRS: .10 sec, QT: .56 sec.
3.
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| Atrial fibrillation with rapid ventricular response. |
The rhythm is irregular with a ventricular rate of 156/min. The P waves are absent but there appears to be some fibrillatory waves in between some of the QRS complexes. No ectopic beats are seen. PR: ---, QRS: .14 sec, QT: . 32 sec.
4.
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| Multifocal atrial tachycardia |
The rhythm is irregular with a rate of 120/min. The P waves are upright and precede a QRS complex. The morphology of the P waves and the PR interval varies on some beats, for instance the 2nd, 4th, and 6th complexes. There must be at least 3 different P waves for the rhythm to meet the criteria for MAT. There are multiple PACs present. PR: .12 sec, QRS: .08 sec, QT: ---
5.
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| Idioventricular rhythm changing to agonal rhythm |
The rhythm is irregular. The morphology and rate of the QRS changes from an organized looking complex to one that is less organized. No P waves are seen.
Reviewed on 3/2/16
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