Practice EKG Rhythm Strips 118
Identify the following rhythms.
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Answers
1.
The rhythm is regular with a ventricular rate of 71/min. There appears to be flutter waves between the QRS complexes. No ectopic beats are noted. PR: ---, QRS: .16 sec, QT: .48 sec.
2.
The rhythm is regular and sinus in origin. The rate is 150/min. The P waves are uniform and upright. No ectopic beats are noted. PR: .12 sec, QRS: .06 sec, QT: .30 sec.
3.
The rhythm is regular and the rate is 75/min. The P waves look upright. No ectopy is present. There is some electrical artifact present. PR: .16 sec, QRS: .12 sec, QT: .48 sec.
4.
The rhythm is regular with a rate of 188/min. No P waves or ectopic beats are noted. The QRS is narrow suggesting a supraventricular origin. PR: ---, QRS: .06 sec, QT: .24 sec.
5.
The rhythm is irregular due to the ectopic beat. The rate is 50/min. The P waves are associated with a QRS complex. The P waves are upright except that a retrograde P wave that precedes the 4th QRS complex. A junctional ectopic beat follows the 3rd complex. This is followed by a compensatory pause. PR: .20 sec, QRS: .12 sec, QT: .48 sec.
1.
2.
3.
4.
5.
Answers
1.
 |
| Ventricular paced |
The rhythm is regular with a ventricular rate of 71/min. There appears to be flutter waves between the QRS complexes. No ectopic beats are noted. PR: ---, QRS: .16 sec, QT: .48 sec.
2.
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| Sinus tachycardia |
The rhythm is regular and sinus in origin. The rate is 150/min. The P waves are uniform and upright. No ectopic beats are noted. PR: .12 sec, QRS: .06 sec, QT: .30 sec.
3.
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| Normal sinus rhythm with artifact |
The rhythm is regular and the rate is 75/min. The P waves look upright. No ectopy is present. There is some electrical artifact present. PR: .16 sec, QRS: .12 sec, QT: .48 sec.
4.
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| Supraventricular tachycardia |
The rhythm is regular with a rate of 188/min. No P waves or ectopic beats are noted. The QRS is narrow suggesting a supraventricular origin. PR: ---, QRS: .06 sec, QT: .24 sec.
5.
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| Sinus bradycardia with a PJC |
The rhythm is irregular due to the ectopic beat. The rate is 50/min. The P waves are associated with a QRS complex. The P waves are upright except that a retrograde P wave that precedes the 4th QRS complex. A junctional ectopic beat follows the 3rd complex. This is followed by a compensatory pause. PR: .20 sec, QRS: .12 sec, QT: .48 sec.
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