ECG Rhythm Strips 80
Identify the following rhythms.
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Answers
1.
The rhythm is irregular due to the PVCs. The rate is 70/min. The P waves are upright and precede the QRS complex. A couplet and a single PVC are seen. PR: . 16 sec, QRS: .08 sec, QT: .32 sec.
2.
The rhythm is irregular because of the ectopic beat. The P waves have a corresponding QRS complex. There is an ectopic beat with a negative P wave preceding the 6th QRS complex. PR: .16 sec, QRS: .08 sec, QT: .36 sec.
3.
The rhythm is irregular with a rate of 100/min. There are small broad P waves before each QRS complex. An atrial premature complex is seen following the 6th complex. The P waves of this PAC has a different shape than the P waves of sinus origin. PR: .20 sec, QRS: .08 sec, QT: .36 sec.
4.
The rhythm is irregular. The rate is 80/min. The P waves are small and precede the QRS complexes. There is a PJC that follows closely after the 5th complex. There is no change in the morphology of the T wave of the preceding complex so this is thought to be a premature junctional rather than an premature atrial complex. When doubt exists, I have seen then referred to as premature supraventricular complexes. PR: .20 sec, QRS: .08 sec, QT: .28 sec.
5.
The rhythm is irregular and the rate is 70/min. The P waves are positive and precede a QRS complex. The 3rd, 8th, and 10th complexes are PACs. The P wave of the PACs has a slightly different morphology than the sinus P waves. PR: .12 sec, QRS: .08 sec, QT: .40 sec.
Reviewed 3/9/16
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2.
3.
4.
5.
Answers
1.
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| NSR with a Couplet of PVCs |
The rhythm is irregular due to the PVCs. The rate is 70/min. The P waves are upright and precede the QRS complex. A couplet and a single PVC are seen. PR: . 16 sec, QRS: .08 sec, QT: .32 sec.
2.
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| Normal Sinus Rhythm with a PJC |
3.
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| Normal Sinus Rhythm with a PAC |
The rhythm is irregular with a rate of 100/min. There are small broad P waves before each QRS complex. An atrial premature complex is seen following the 6th complex. The P waves of this PAC has a different shape than the P waves of sinus origin. PR: .20 sec, QRS: .08 sec, QT: .36 sec.
4.
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| Normal Sinus Rhythm with a PJC |
The rhythm is irregular. The rate is 80/min. The P waves are small and precede the QRS complexes. There is a PJC that follows closely after the 5th complex. There is no change in the morphology of the T wave of the preceding complex so this is thought to be a premature junctional rather than an premature atrial complex. When doubt exists, I have seen then referred to as premature supraventricular complexes. PR: .20 sec, QRS: .08 sec, QT: .28 sec.
5.
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| Normal Sinus Rhythm with PACs |
The rhythm is irregular and the rate is 70/min. The P waves are positive and precede a QRS complex. The 3rd, 8th, and 10th complexes are PACs. The P wave of the PACs has a slightly different morphology than the sinus P waves. PR: .12 sec, QRS: .08 sec, QT: .40 sec.
Reviewed 3/9/16
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