ECG Rhythm Strips 76
Identify the following rhythms.
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Answers
1.
The rhythm is irregular with some dropped beats. The rate is 60/min. The P waves are upright and uniform but there are dropped P waves after the 4th and 7th complexes. There is progressive lengthening of the PR interval. No ectopic beats are noted. PR: .20/.26/.32/.36 sec, QRS: .12 sec, QT: .48 sec. This patient would sometime alternate between 3 beat cycles and 4 beat cycles of this rhythm.
2.
The rhythm is is irregular with some dropped complexes. The rate is 50/min. The P waves are upright but there are some that are not associated with a QRS complex. The PR interval is the same on the conducted beats. No ectopic beats are present. There is ST elevation in the V1 lead with some reciprocal ST depression in lead II. PR: .16 sec, QRS: .16 sec, QT: .36 sec.
3.
The rhythm is regular with a rate of 70/min. There are very small flutter flutter waves between each complex. No ectopic beats are seen. Biventricular pacer spikes are seen. PR: ---, QRS: .16 sec, QT: .48 sec.
4.
The rhythm is regular with a ventricular rate of 40/min. The P waves are positive and have a corresponding QRS complex. There is ST segment depression with inversion of the T wave in lead II. PR: .16 sec, QRS: .16 sec, QT: .48 sec.
5.
The rhythm is irregular due to the ventricular ectopic beats. The rate is 110/min. The P waves are wide, upright and are associated with a QRS complex. The are two unifocal PVCs present. The ST segment is up slopping in lead II with 2mm ST elevation in the V1 lead. PR: .14 sec, QRS: .08 sec, QT: .34 sec.
Reviewed 3/8/16
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2.
3.
4.
5.
Answers
1.
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| 2nd Degree AV Block Type I |
The rhythm is irregular with some dropped beats. The rate is 60/min. The P waves are upright and uniform but there are dropped P waves after the 4th and 7th complexes. There is progressive lengthening of the PR interval. No ectopic beats are noted. PR: .20/.26/.32/.36 sec, QRS: .12 sec, QT: .48 sec. This patient would sometime alternate between 3 beat cycles and 4 beat cycles of this rhythm.
2.
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| 2nd Degree AV Block Type II |
The rhythm is is irregular with some dropped complexes. The rate is 50/min. The P waves are upright but there are some that are not associated with a QRS complex. The PR interval is the same on the conducted beats. No ectopic beats are present. There is ST elevation in the V1 lead with some reciprocal ST depression in lead II. PR: .16 sec, QRS: .16 sec, QT: .36 sec.
3.
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| Biventricular Paced |
The rhythm is regular with a rate of 70/min. There are very small flutter flutter waves between each complex. No ectopic beats are seen. Biventricular pacer spikes are seen. PR: ---, QRS: .16 sec, QT: .48 sec.
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| Sinus bradycardia |
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| Sinus Tachycardia with Unifocal PVCs |
The rhythm is irregular due to the ventricular ectopic beats. The rate is 110/min. The P waves are wide, upright and are associated with a QRS complex. The are two unifocal PVCs present. The ST segment is up slopping in lead II with 2mm ST elevation in the V1 lead. PR: .14 sec, QRS: .08 sec, QT: .34 sec.
Reviewed 3/8/16
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