EKG Rhythm Strips 63
Identify the following rhythms.
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Answers
The rhythm is irregular because of the demand pacing. P waves are present and are associated with a QRS complex. The PR interval is prolonged. The 3rd and 13th complexes are fusion complexes and have a wide QRS complex There is a ventricular paced beat every other beat. PR: .32 sec, QRS: .12 sec, QT: .32 sec.
2.
The rhythm is irregular with a rate of 156/min. No P waves are seen. There is fibrillatory activity between the QRS complexes. No ectopic beats are noted. PR: ---, QRS: .08 sec, QT: .28 sec.
3.
The rhythm is regular. The ventricular rate is 63/min. No P waves are seen. The QRS complexes are narrow. No ectopic beats are present. PR: ---, QRS: .06, QT: .40 sec.
4.
The rhythm is irregular. The rate is 80/min. The P waves are upright and are associated with a QRS complex. Some PACs are seen, 2nd, 3rd, 6th, and 8th complexes. The shape of the ectopic P waves is different from the P waves of sinus origin. PR: .12 sec, QRS: .08 sec, QT: .32 sec.
5.
The rhythm is regular with a ventricular rate of 71/min. There appears to be some fibrillatory activity between the QRS complexes. No P waves are seen. No ectopic beats are noted. A ventricular pacing stimulus precedes each QRS complex. PR: ---, QRS: .16 sec, QT: .36 sec.
Reviewed 3/6/16
1.
2.
.JPG)
3.
4.
5.
.JPG)
Answers
1.
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| Normal sinus rhythm with 1st degree block and ventricular paced beat every other beat |
The rhythm is irregular because of the demand pacing. P waves are present and are associated with a QRS complex. The PR interval is prolonged. The 3rd and 13th complexes are fusion complexes and have a wide QRS complex There is a ventricular paced beat every other beat. PR: .32 sec, QRS: .12 sec, QT: .32 sec.
2.
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| Atrial fibrillation with rapid ventricular response |
The rhythm is irregular with a rate of 156/min. No P waves are seen. There is fibrillatory activity between the QRS complexes. No ectopic beats are noted. PR: ---, QRS: .08 sec, QT: .28 sec.
3.
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| Accelerated junctional rhythm |
The rhythm is regular. The ventricular rate is 63/min. No P waves are seen. The QRS complexes are narrow. No ectopic beats are present. PR: ---, QRS: .06, QT: .40 sec.
4.
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| Normal sinus rhythm with frequent PACs |
The rhythm is irregular. The rate is 80/min. The P waves are upright and are associated with a QRS complex. Some PACs are seen, 2nd, 3rd, 6th, and 8th complexes. The shape of the ectopic P waves is different from the P waves of sinus origin. PR: .12 sec, QRS: .08 sec, QT: .32 sec.
5.
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Ventricular paced
|
The rhythm is regular with a ventricular rate of 71/min. There appears to be some fibrillatory activity between the QRS complexes. No P waves are seen. No ectopic beats are noted. A ventricular pacing stimulus precedes each QRS complex. PR: ---, QRS: .16 sec, QT: .36 sec.
Reviewed 3/6/16
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