EKG Rhythm Strips 68
Identify the following rhythms.
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Answers
1.
The rhythm is regular. The ventricular rate is 100/min. The P waves are upright and are associated with a QRS complex. The P waves on this strip are wide, > 0.12 sec. This is characteristic of left atrial enlargement. No ectopic beats are noted. PR: .32 sec, QRS: .12 sec, QT: .32 sec.
2.
The rhythm is regular with a rate of 188/min. No P waves are evident. Because of the fast rate the P waves, if present, and T waves are fused together. No ectopic beats are noted. PR: ---, QRS: .10 sec, QT: .28 sec.
3.
The rhythm is regular. The rate is 115/min. The P waves are upright and have a corresponding QRS complex. No ectopic beats are noted. PR: .12 sec, QRS: .08 sec, QT: .32 sec.
4.
The rhythm is irregular due to the ectopic beats. The rate is 96/min. The P waves are upright and are associated with a QRS complex. A PAC follows the 5th complex. The P wave of the PAC has a different shape than the P waves of sinus origin. An atrial escape beat follows . A PAC follows the 9th complex and a junctional beat follows the PAC. PR: .12 sec, QRS; .08 sec, QT: .40 sec.
5.
The rhythm is irregular with a rate of 48/min. Flutter waves are seen in between the QRS complexes. No ectopic beats are noted. PR: ---, QRS: .08 sec, QT: .32 sec.
Reviewed 3/6/16
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Answers
1.
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| Normal sinus rhythm with 1st degree block |
2.
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| Supraventricular tachycardia |
The rhythm is regular with a rate of 188/min. No P waves are evident. Because of the fast rate the P waves, if present, and T waves are fused together. No ectopic beats are noted. PR: ---, QRS: .10 sec, QT: .28 sec.
3.
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| Sinus tachycardia |
The rhythm is regular. The rate is 115/min. The P waves are upright and have a corresponding QRS complex. No ectopic beats are noted. PR: .12 sec, QRS: .08 sec, QT: .32 sec.
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| Normal sinus rhythm PACs |
The rhythm is irregular due to the ectopic beats. The rate is 96/min. The P waves are upright and are associated with a QRS complex. A PAC follows the 5th complex. The P wave of the PAC has a different shape than the P waves of sinus origin. An atrial escape beat follows . A PAC follows the 9th complex and a junctional beat follows the PAC. PR: .12 sec, QRS; .08 sec, QT: .40 sec.
5.
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| Atrial flutter |
The rhythm is irregular with a rate of 48/min. Flutter waves are seen in between the QRS complexes. No ectopic beats are noted. PR: ---, QRS: .08 sec, QT: .32 sec.
Reviewed 3/6/16
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