Practice EKG Rhythm Strips 225
Identify the following rhythms.
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Answers
1.
The rhythm is regular with a rate of 58/min. The P waves are uniform, upright, and paired with a QRS complex. The PR interval is prolonged. The QRS complex is narrow. No ectopic beats are noted. PR: .40 sec, QRS; .08 sec. QT: .40 sec. Interpretation: Sinus bradycardia with 1st degree block
2.
The rhythm is irregular. The heart rate is 80/min. P waves are not seen. In the first five complexes a ventricular pacer spike precedes the QRS complexes. The 6th and 7th complex represent the patient's underlying heart rhythm. PR: ---, QRS: .16 sec, QT: .44 sec. Interpretation: Demand ventricular pacing.
3.
The rhythm is irregular with a heart rate of 90/min. The P waves are upright and associated with a QRS complex. There are unifocal PVCs in a trigeminal pattern. PR: .16 sec, QRS: .10 sec, QT: .34 sec. Interpretation: Normal sinus rhythm with trigeminal PVCs
4.
The rhythm is irregular. The rate is 60/min. The P waves are uniform and are associated with a QRS complex. The R-R interval between the 1st and 2nd complex is 1.12 sec and the R-R interval between the 3rd and 4th complex is .88 sec. The QRS complexes are narrow. No ectopic beats are noted. PR: .20 sec, QRS: .08 sec. QT: .40 sec. Interpretation: Sinus arrhythmia
5.
The rhythm is regular with a rate of 180/min. The P waves are not seen. The QRS complex is narrow. No ectopic beats are seen. PR: ---, QRS: .08 sec, QT: .28 sec. Interpretation: Supraventricular tachycardia
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2.
3.
4.
.jpg)
5.
Answers
1.
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| Sinus bradycardia with 1st degree block |
The rhythm is regular with a rate of 58/min. The P waves are uniform, upright, and paired with a QRS complex. The PR interval is prolonged. The QRS complex is narrow. No ectopic beats are noted. PR: .40 sec, QRS; .08 sec. QT: .40 sec. Interpretation: Sinus bradycardia with 1st degree block
2.
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| Demand ventricular pacing |
The rhythm is irregular. The heart rate is 80/min. P waves are not seen. In the first five complexes a ventricular pacer spike precedes the QRS complexes. The 6th and 7th complex represent the patient's underlying heart rhythm. PR: ---, QRS: .16 sec, QT: .44 sec. Interpretation: Demand ventricular pacing.
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| Normal sinus rhythm with trigeminal PVCs |
The rhythm is irregular with a heart rate of 90/min. The P waves are upright and associated with a QRS complex. There are unifocal PVCs in a trigeminal pattern. PR: .16 sec, QRS: .10 sec, QT: .34 sec. Interpretation: Normal sinus rhythm with trigeminal PVCs
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| Sinus arrhythmia |
The rhythm is irregular. The rate is 60/min. The P waves are uniform and are associated with a QRS complex. The R-R interval between the 1st and 2nd complex is 1.12 sec and the R-R interval between the 3rd and 4th complex is .88 sec. The QRS complexes are narrow. No ectopic beats are noted. PR: .20 sec, QRS: .08 sec. QT: .40 sec. Interpretation: Sinus arrhythmia
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| Supraventricular tachycardia |
The rhythm is regular with a rate of 180/min. The P waves are not seen. The QRS complex is narrow. No ectopic beats are seen. PR: ---, QRS: .08 sec, QT: .28 sec. Interpretation: Supraventricular tachycardia
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