Practice EKG Rhythm Strips 95
Identify the following rhythms.
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Answers
1.
The rate is 20/min. No P waves are seen. The QRS complexes are wide with some ST elevation. P: ---, QRS: .16 sec, QT: .48 sec.
2.
Notice that there is a right bundle branch block present in the patient's underlying rhythm. When the rate speeds up the wide QRS complex gives the impression that the patient has ventricular tachycardia
3.
The rhythm is irregular. The rate is 60/min. The P waves are upright and precede each QRS complex. There is an atrial pacer spike before the 2nd and 6th complexes. There is a dropped P wave after the 1st, 5th, and 8th complexes. Ventricular pacer spikes precede each QRS complex.
PR: .10 sec, QRS: 16 sec, QT: .44 sec.
4.
The rhythm is irregular due to the PVCs. The rate is 100/min. The P waves are upright and are associated with a QRS complex. Unifocal PVCs are seen every 5th beat. PR: .16 sec, QRS: .08 sec, QT: .40 sec.
5.
The rhythm is irregular with junctional ectopic beats. The rate is 90/min. The P waves have a corresponding QRS complex. There are negative P waves every third beat in a trigeminal pattern. PR: .12 sec, QRS: .08 sec, QT: .36 sec.
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2.
3.
4.
5.
Answers
1.
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| Agonal rhythm |
The rate is 20/min. No P waves are seen. The QRS complexes are wide with some ST elevation. P: ---, QRS: .16 sec, QT: .48 sec.
2.
+explained.jpg) |
| SVT with aberrancy changing to NSR |
Notice that there is a right bundle branch block present in the patient's underlying rhythm. When the rate speeds up the wide QRS complex gives the impression that the patient has ventricular tachycardia
3.
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| Demand atrial pacing with some dropped beats |
The rhythm is irregular. The rate is 60/min. The P waves are upright and precede each QRS complex. There is an atrial pacer spike before the 2nd and 6th complexes. There is a dropped P wave after the 1st, 5th, and 8th complexes. Ventricular pacer spikes precede each QRS complex.
PR: .10 sec, QRS: 16 sec, QT: .44 sec.
4.
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| NSR with unifocal PVCs (pentageminy) |
The rhythm is irregular due to the PVCs. The rate is 100/min. The P waves are upright and are associated with a QRS complex. Unifocal PVCs are seen every 5th beat. PR: .16 sec, QRS: .08 sec, QT: .40 sec.
5.
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| NSR with junctional trigeminy |
The rhythm is irregular with junctional ectopic beats. The rate is 90/min. The P waves have a corresponding QRS complex. There are negative P waves every third beat in a trigeminal pattern. PR: .12 sec, QRS: .08 sec, QT: .36 sec.
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