Practice EKG Rhythm Strips 212
Identify the following rhythms.
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Answers
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The rhythm is irregular with a rate of 60/min. No P waves are seen. There are bigeminal PVCs present. PR: ---, QRS: .08 sec, QT: .44 sec. Interpretation: Junctional rhythm with bigeminal PVCs
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Wow, this strip looks really dirty. I apologize. Something must have changed in the contrast when it was uploaded.
The rhythm is regular with a rate of 60/min. There are P waves associated with each QRS complex. The P waves are upright and uniform. There is ST depression and T wave inversion seen in lead II and 1mm ST elevation seen in lead V1. PR: .18 sec, QRS: .08 sec, QT: .36 sec. Interpretation: Normal sinus rhythm
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The rhythm is irregular. The rate is 100/min. P waves are present and associated with a QRS complex. There are two PACs, the 3rd and 8th complexes. The P waves of the PACs are fused with the T wave of the preceding complex. PR: .20 sec, QRS: .10 sec, QT: .36 sec. Interpretation: Normal sinus rhythm with PACs
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The rhythm is irregular with a rate of 40/min. There are upright P waves paired with a QRS complex. No ectopy is noted. A 1.8 sec pause follows the 3rd complex. PR: ,12 sec, QRS: .08 sec, QT: .44 sec. Interpretation: Sinus bradycardia with a pause.
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The rhythm is regular. The atrial rate is 71/min. P waves are present but there is no ventricular activity. Interpretation: Ventricular standstill or P wave asystole. If this were an idioventricular rhythm you would see a wider complex and a T wave with some ST changes present.
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2.
3.
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4.
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5.
Answers
1.
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| Junctional rhythm with bigeminal PVCs |
The rhythm is irregular with a rate of 60/min. No P waves are seen. There are bigeminal PVCs present. PR: ---, QRS: .08 sec, QT: .44 sec. Interpretation: Junctional rhythm with bigeminal PVCs
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| Normal sinus rhythm |
The rhythm is regular with a rate of 60/min. There are P waves associated with each QRS complex. The P waves are upright and uniform. There is ST depression and T wave inversion seen in lead II and 1mm ST elevation seen in lead V1. PR: .18 sec, QRS: .08 sec, QT: .36 sec. Interpretation: Normal sinus rhythm
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| Normal sinus rhythm with PACs |
The rhythm is irregular. The rate is 100/min. P waves are present and associated with a QRS complex. There are two PACs, the 3rd and 8th complexes. The P waves of the PACs are fused with the T wave of the preceding complex. PR: .20 sec, QRS: .10 sec, QT: .36 sec. Interpretation: Normal sinus rhythm with PACs
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| Sinus bradycardia with a pause |
The rhythm is irregular with a rate of 40/min. There are upright P waves paired with a QRS complex. No ectopy is noted. A 1.8 sec pause follows the 3rd complex. PR: ,12 sec, QRS: .08 sec, QT: .44 sec. Interpretation: Sinus bradycardia with a pause.
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| Ventricular standstill |
The rhythm is regular. The atrial rate is 71/min. P waves are present but there is no ventricular activity. Interpretation: Ventricular standstill or P wave asystole. If this were an idioventricular rhythm you would see a wider complex and a T wave with some ST changes present.
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