Practice EKG Rhythm Strips 93
Identify the following rhythms.
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Answers
1.
The rhythm is irregular due to the PACs. The P waves are positive and precede each QRS complex. There are atrial ectopic beats: the 3rd, 8th, and 10th complexes. PR: .16 sec, QRS: .08 sec, QT: .40 sec.
2.
The rhythm is irregular because of the PVCs. The P waves are upright and are associated with a QRS complex. There are unifocal PVCs present, one single and one couplet. PR; .16 sec, QRS: .08 sec, QT: .36 sec.
3.
The rhythm is regular with a rate of 115/min. The P waves are positive and precede each QRS complex. No ectopic beats are present. PR: .20 sec, QRS: .08 sec, QT: . 32 sec.
4.
The rhythm is irregular. P waves are broad and upright on the 1st, 4th, 7th, and 10th complexes. There appear to be P waves buried in the T waves of the 2nd, 3rd, 5th, 6th, 8th, 9th, 11th, and 12th complexes. Notice that the amplitude of the 3rd, 6th, 9th, and 12th T waves is smaller than the T waves that precede them. There are ventricular pacer spikes before each QRS complex. PR: .20 sec, QRS: .16 sec, QT: .44 sec.
5.
The rhythm is irregular with a long run of ventricular tachycardia. The P waves are positive and are associated with a QRS complex. There is a single PVC present but a long run of ventricular tachycardia dominates the latter half of the rhythm strip. PR: .12 sec, QRS: .08 sec, QT: .28 sec.
1.
2.
3.
4.
5.
Answers
1.
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| NSR with frequent PACs |
The rhythm is irregular due to the PACs. The P waves are positive and precede each QRS complex. There are atrial ectopic beats: the 3rd, 8th, and 10th complexes. PR: .16 sec, QRS: .08 sec, QT: .40 sec.
2.
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| NSR with a couplet |
The rhythm is irregular because of the PVCs. The P waves are upright and are associated with a QRS complex. There are unifocal PVCs present, one single and one couplet. PR; .16 sec, QRS: .08 sec, QT: .36 sec.
3.
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| Sinus tachycardia |
The rhythm is regular with a rate of 115/min. The P waves are positive and precede each QRS complex. No ectopic beats are present. PR: .20 sec, QRS: .08 sec, QT: . 32 sec.
4.
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| Ventricular paced (top) arterial pressure reading (bottom) |
The rhythm is irregular. P waves are broad and upright on the 1st, 4th, 7th, and 10th complexes. There appear to be P waves buried in the T waves of the 2nd, 3rd, 5th, 6th, 8th, 9th, 11th, and 12th complexes. Notice that the amplitude of the 3rd, 6th, 9th, and 12th T waves is smaller than the T waves that precede them. There are ventricular pacer spikes before each QRS complex. PR: .20 sec, QRS: .16 sec, QT: .44 sec.
5.
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| NSR changing to ventricular tachycardia |
The rhythm is irregular with a long run of ventricular tachycardia. The P waves are positive and are associated with a QRS complex. There is a single PVC present but a long run of ventricular tachycardia dominates the latter half of the rhythm strip. PR: .12 sec, QRS: .08 sec, QT: .28 sec.
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