Practice EKG Rhythm Strips 120
Identify the following rhythms.
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Answers
1.
The rhythm is regular with a rate of 115/min. Upright P waves are seen before each QRS complex. No ectopic beats are present. There is wandering baseline. P: .12 sec, QRS: .06 sec, QT: .32 sec.
2.
The rhythm is regular. The atrial rate is 80/min and the ventricular rate is 40/min. Up right P waves are present but some P waves are not associated with a QRS complex. The PR on the conducted P waves is consistent. PR: .16 sec, QRS: .10, QT: .40 sec.
3.
The rhythm is irregular and the rate is 160/min. No consistent P waves are present but some fibrillatory activity can be seen between the QRS complexes. PR: ---, QRS: .06 sec, QT: .24 sec.
4.
The rhythm is irregular with a rate of 50/min. No P waves are present. Between the QRS complexes there are some fibrillatory waves. No ectopy is noted. PR: ---, QRS: .08, QT: .40 sec.
5.
The rhythm is irregular due to the PVCs. The rate is 90/min. There are upright P waves present which are accompanied by a QRS complex. Unifocal PVC occur every third beat. PR: .18 sec, QRS: .10 sec, QT: .40 sec.
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2.
3.
4.
5.
Answers
1.
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| Sinus tachycardia with wandering baseline |
The rhythm is regular with a rate of 115/min. Upright P waves are seen before each QRS complex. No ectopic beats are present. There is wandering baseline. P: .12 sec, QRS: .06 sec, QT: .32 sec.
2.
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| 2nd degree AV block type II |
The rhythm is regular. The atrial rate is 80/min and the ventricular rate is 40/min. Up right P waves are present but some P waves are not associated with a QRS complex. The PR on the conducted P waves is consistent. PR: .16 sec, QRS: .10, QT: .40 sec.
3.
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| Atrial fibrillation with rapid ventricular response |
The rhythm is irregular and the rate is 160/min. No consistent P waves are present but some fibrillatory activity can be seen between the QRS complexes. PR: ---, QRS: .06 sec, QT: .24 sec.
4.
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| Atrial fibrillation with slow ventricular response |
The rhythm is irregular with a rate of 50/min. No P waves are present. Between the QRS complexes there are some fibrillatory waves. No ectopy is noted. PR: ---, QRS: .08, QT: .40 sec.
5.
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| Normal sinus rhythm with ventricular trigeminy |
The rhythm is irregular due to the PVCs. The rate is 90/min. There are upright P waves present which are accompanied by a QRS complex. Unifocal PVC occur every third beat. PR: .18 sec, QRS: .10 sec, QT: .40 sec.
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