Practice EKG Rhythm Strips 200
Identify the following rhythms.
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Answers
1.
The rhythm is irregular with a heart rate of 50/min. The P waves are upright, except for the 2nd complex. The P wave of the PJC is negative. PR: .16 sec, QRS: .08 sec, QT: .40 sec.
2.
The rhythm is irregular due to the PVCs. The ventricular rate is 60/min. No P waves are seen. There are two unifocal PVCs present, the 1st and 4th complexes. There are ventricular pacer spikes before the remaining QRS complexes. PR: ---, QRS: .16 sec, QT: .44 sec.
3.
The rhythm is regular with a rate of 125/min. The P waves are absent. No ectopic beats are noted. The QRS complex is narrow. PR: ---, QRS: .08 sec, QT: .28 sec.
4.
The rhythm is regular with a rate of 79/min. The P waves are upright and precede the QRS complex. The PR interval is prolonged. There are atrial pacer spikes before each P wave and ventricular pacer spikes before each QRS complex. PR: .36 sec, QRS: .12 sec, QT: .40 sec.
5.
The rhythm is regular with a rate of 62/min. The P waves are upright and precede the QRS complexes. The PR interval is prolonged. No ectopic beats are noted. PR: .36 sec, QRS: .08 sec, QT: .40 sec.
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2.
3.
4.
5.
Answers
1.
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| Sinus bradycardia with a PJC |
The rhythm is irregular with a heart rate of 50/min. The P waves are upright, except for the 2nd complex. The P wave of the PJC is negative. PR: .16 sec, QRS: .08 sec, QT: .40 sec.
2.
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| Ventricular paced with unifocal PVCs |
The rhythm is irregular due to the PVCs. The ventricular rate is 60/min. No P waves are seen. There are two unifocal PVCs present, the 1st and 4th complexes. There are ventricular pacer spikes before the remaining QRS complexes. PR: ---, QRS: .16 sec, QT: .44 sec.
3.
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| Junctional tachycardia |
The rhythm is regular with a rate of 125/min. The P waves are absent. No ectopic beats are noted. The QRS complex is narrow. PR: ---, QRS: .08 sec, QT: .28 sec.
4.
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| Dual paced |
The rhythm is regular with a rate of 79/min. The P waves are upright and precede the QRS complex. The PR interval is prolonged. There are atrial pacer spikes before each P wave and ventricular pacer spikes before each QRS complex. PR: .36 sec, QRS: .12 sec, QT: .40 sec.
5.
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| 1st degree block |
The rhythm is regular with a rate of 62/min. The P waves are upright and precede the QRS complexes. The PR interval is prolonged. No ectopic beats are noted. PR: .36 sec, QRS: .08 sec, QT: .40 sec.
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