Practice EKG Rhythm Strips 228
Identify the following rhythms.
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Answers
1.
The rhythm is regular. The rate is 125/minute. There is one P wave for every QRS complex. The QRS complex is narrow. No ectopic beats are noted. PR: .16 sec, QRS: .08 sec. QT: .30 sec. Interpretation: Sinus tachycardia
2.
The rhythm is regular with a rate of 75/min. The P waves are absent. However, there appears to be some retrograde P waves seen on ST segment. The QRS complex shows some conduction delay. No ectopic beats are noted. PR: ---, QRS: .10 sec. QT: .48 sec. Interpretation: Accelerated junctional rhythm.
3.
The rhythm is irregular with a rate of 140/min. I do not see any P waves. There appears to be some fibrillatory activity between the QRS complexes. The QRS complex is narrow. However, there is 7 mm ST segment elevation present. PR: ---, QRS: .08 sec, QT: .32 sec. Interpretation: Atrial fibrillation
4.
The rhythm is regular. The rate is 136/min. No P waves are seen. The QRS is wide and uniform. PR: ---, QRS: .12 sec, QT: .44 sec. Interpretation: Ventricular tachycardia
5.
The rhythm is irregular with a heart rate of 80. Flutter waves are seen. There is variable ventricular response. The 6th complex is wider and may be a fusion complex. PR: ---, QRS: .08 sec. QT: .36 sec. Interpretation: Atrial flutter with variable ventricular response.
1.
2.
3.
4.
5.
Answers
1.
 |
| Sinus tachycardia |
The rhythm is regular. The rate is 125/minute. There is one P wave for every QRS complex. The QRS complex is narrow. No ectopic beats are noted. PR: .16 sec, QRS: .08 sec. QT: .30 sec. Interpretation: Sinus tachycardia
2.
 |
| Accelerated junctional rhythm |
The rhythm is regular with a rate of 75/min. The P waves are absent. However, there appears to be some retrograde P waves seen on ST segment. The QRS complex shows some conduction delay. No ectopic beats are noted. PR: ---, QRS: .10 sec. QT: .48 sec. Interpretation: Accelerated junctional rhythm.
3.
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| Atrial fibrillation |
The rhythm is irregular with a rate of 140/min. I do not see any P waves. There appears to be some fibrillatory activity between the QRS complexes. The QRS complex is narrow. However, there is 7 mm ST segment elevation present. PR: ---, QRS: .08 sec, QT: .32 sec. Interpretation: Atrial fibrillation
4.
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| Monomorphic ventricular tachycardia |
The rhythm is regular. The rate is 136/min. No P waves are seen. The QRS is wide and uniform. PR: ---, QRS: .12 sec, QT: .44 sec. Interpretation: Ventricular tachycardia
5.
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| Atrial flutter with variable ventricular response |
The rhythm is irregular with a heart rate of 80. Flutter waves are seen. There is variable ventricular response. The 6th complex is wider and may be a fusion complex. PR: ---, QRS: .08 sec. QT: .36 sec. Interpretation: Atrial flutter with variable ventricular response.
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