Practice EKG Rhythm Strips 207
Identify the following rhythms.
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Answers
1.
The rhythm is regular with a rate of 55/min. The P waves are uniform, upright, and have a corresponding QRS complex. The PR interval is prolonged. No ectopic beats are noted. PR: .32 sec, QRS: .10 sec, QT: .40 sec.
2.
The rhythm is regular with a heart rate of 79/min. The P waves are positive and uniform. No ectopic beats are seen. PR: .16 sec, QRS: .12 sec, QT: .40 sec.
3.
The rhythm looks regular. There is artifact which obscures the P waves. The artifact may be due to a loose lead or movement by the patient.
4.
The rhythm is irregular due to the PACs. The heart rate is 70/min. The P waves of the PACs have a different shape than the P waves of sinus origin. The PACs also have a bigeminal pattern occurring every other beat. PR: .16 sec, QRS: .12 sec, QT: .40 sec
5.
The rhythm is irregular with a rate of 90/min. The P waves are uniform and upright with a corresponding QRS complex. There are unifocal PVCs present. PR: .20 sec, QRS: .08 sec. QT: .40 sec.
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2.
3.
4.
5.
Answers
1.
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| Bradycardia with a 1st degree AV block |
The rhythm is regular with a rate of 55/min. The P waves are uniform, upright, and have a corresponding QRS complex. The PR interval is prolonged. No ectopic beats are noted. PR: .32 sec, QRS: .10 sec, QT: .40 sec.
2.
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| Normal sinus rhythm |
The rhythm is regular with a heart rate of 79/min. The P waves are positive and uniform. No ectopic beats are seen. PR: .16 sec, QRS: .12 sec, QT: .40 sec.
3.
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| Sinus rhythm with artifact |
The rhythm looks regular. There is artifact which obscures the P waves. The artifact may be due to a loose lead or movement by the patient.
4.
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| Sinus rhythm with bigeminal PACs |
The rhythm is irregular due to the PACs. The heart rate is 70/min. The P waves of the PACs have a different shape than the P waves of sinus origin. The PACs also have a bigeminal pattern occurring every other beat. PR: .16 sec, QRS: .12 sec, QT: .40 sec
5.
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| Normal sinus rhythm with unifocal PVCs |
The rhythm is irregular with a rate of 90/min. The P waves are uniform and upright with a corresponding QRS complex. There are unifocal PVCs present. PR: .20 sec, QRS: .08 sec. QT: .40 sec.
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