EKG Rhythm Strips 58
Identify the following rhythms.
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Answers
1.
The rhythm is irregular. The rate is 120/min. No P waves are seen. A multifocal couplet is present. PR: ---, QRS: .12 sec, QT: .36 sec.
2.
The rhythm is regular. The rate is 55/min. No P waves are seen but there appears to be some fibrillatory waves between the QRS complexes. No ectopic beats are noted. Biventricular pacer spikes are seen with each QRS complex. PR: --, QRS: .12 sec, QT: .68 sec.
3.
The rhythm is regular due to the frequent atrial ectopic beats. The rate is 80/min. The P waves are upright and associated with a QRS complex. A premature atrial contraction is seen every fourth beat. PR: .16 sec, QRS: .08 sec, QT: .38 sec.
4.
The rhythm is irregular due to the PVCs. The rate is 90/min. The P waves are upright and have a corresponding QRS complex. Two unifocal PVCs are seen. PR: .20 sec, QRS: .12 sec, QT: .40 sec.
5.
The rhythm is regular with a rate of 150/min. The P waves are uniform and upright. No ectopic beats are noted. PR: .10 sec, QRS: .08 sec, QT: .24 sec.
1.
2.
3.
4.
5.
Answers
1.
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| Atrial fibrillation with multifocal couplet |
The rhythm is irregular. The rate is 120/min. No P waves are seen. A multifocal couplet is present. PR: ---, QRS: .12 sec, QT: .36 sec.
2.
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| Atrial fibrillation with biventricular pacing |
The rhythm is regular. The rate is 55/min. No P waves are seen but there appears to be some fibrillatory waves between the QRS complexes. No ectopic beats are noted. Biventricular pacer spikes are seen with each QRS complex. PR: --, QRS: .12 sec, QT: .68 sec.
3.
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| Atrial quadrigeminy |
The rhythm is regular due to the frequent atrial ectopic beats. The rate is 80/min. The P waves are upright and associated with a QRS complex. A premature atrial contraction is seen every fourth beat. PR: .16 sec, QRS: .08 sec, QT: .38 sec.
4.
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| NSR with unifocal PVCs |
The rhythm is irregular due to the PVCs. The rate is 90/min. The P waves are upright and have a corresponding QRS complex. Two unifocal PVCs are seen. PR: .20 sec, QRS: .12 sec, QT: .40 sec.
5.
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Sinus tachycardia
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The rhythm is regular with a rate of 150/min. The P waves are uniform and upright. No ectopic beats are noted. PR: .10 sec, QRS: .08 sec, QT: .24 sec.
Reviewed 3/2/16
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