EKG Rhythm Strips 38
Identify the following rhythms
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Answers
The rhythm is regular. The heart rate is 40/min. The P waves are not seen. No ectopic beats are noted. The QRS complex is narrow. PR: ---, QRS: .08 sec, QT: .56 sec
2.
The rhythm is irregular with a heart rate of 100/min. The P waves are upright and have a corresponding QRS complex. Premature atrial complexes are seen every 3rd beat. The P wave of the PACs is fused with the T wave of the preceding complex. PR: .18 sec, QRS: .08 sec, QT: .38 sec.
3.
The rhythm is irregular. The heart rate is 80/min. The P waves are upright and are followed by a QRS complex. Multifocal PVCs are seen. The 1st and 2nd ectopic beats have a small P wave present and likely represent PACs with aberrant conduction. The 3rd PVC is followed by a long pause and then an atrial escape beat, the 9th complex. Other atrial escape beats are also present. The 1st and 5th complexes are preceded by a pause as well and have a similar P waves and morphology as the 9th complex. PR: .24 sec, QRS: .10 sec, QT: .46 sec.
4.
The rhythm is irregular due to the multiple PVCs. The heart rate is 80/min. The P waves are uniform and upright. Unifocal PVCs are seen every 3rd beat. PR: .16 sec, QRS: .08 sec, QT: .44 sec.
5.
The rhythm is regular with a ventricular rate of 83/min. No P waves are seen. Ventricular pacing stimuli are seen before each QRS complex. The QRS complex and the T wave have opposite polarity which is typical for a ventricular paced rhythm. PR: ---, QRS; .16 sec, QT: .44 sec.
Reviewed on 3/2/16
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Answers
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| Junctional rhythm |
The rhythm is regular. The heart rate is 40/min. The P waves are not seen. No ectopic beats are noted. The QRS complex is narrow. PR: ---, QRS: .08 sec, QT: .56 sec
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| NSR with trigeminal PACs |
The rhythm is irregular with a heart rate of 100/min. The P waves are upright and have a corresponding QRS complex. Premature atrial complexes are seen every 3rd beat. The P wave of the PACs is fused with the T wave of the preceding complex. PR: .18 sec, QRS: .08 sec, QT: .38 sec.
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| NSR with 1st degree AV block and multiple ectopic beats and atrial escape beats |
The rhythm is irregular. The heart rate is 80/min. The P waves are upright and are followed by a QRS complex. Multifocal PVCs are seen. The 1st and 2nd ectopic beats have a small P wave present and likely represent PACs with aberrant conduction. The 3rd PVC is followed by a long pause and then an atrial escape beat, the 9th complex. Other atrial escape beats are also present. The 1st and 5th complexes are preceded by a pause as well and have a similar P waves and morphology as the 9th complex. PR: .24 sec, QRS: .10 sec, QT: .46 sec.
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| NSR with unifocal PVCs |
The rhythm is irregular due to the multiple PVCs. The heart rate is 80/min. The P waves are uniform and upright. Unifocal PVCs are seen every 3rd beat. PR: .16 sec, QRS: .08 sec, QT: .44 sec.
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Ventricular paced rhythm
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The rhythm is regular with a ventricular rate of 83/min. No P waves are seen. Ventricular pacing stimuli are seen before each QRS complex. The QRS complex and the T wave have opposite polarity which is typical for a ventricular paced rhythm. PR: ---, QRS; .16 sec, QT: .44 sec.
Reviewed on 3/2/16
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