Practice EKG Rhythm Strips 154
Identify the following rhythms.
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Answers
1.
The rhythm is regular. The rate is 166/min. No readily identifiable P waves are present. No ectopic beats are present. The QRS is narrow, 0.08 sec. The QT interval is 0.28 sec.
2.
The rhythm is irregular due to the PVC. The rate is 110/min. The P waves are upright and precede QRS complex. The PR interval is prolonged. A single PVC is present and it coupled with a P wave. PR: .24 sec, QRS: .08 sec, QT: .36 sec.
3.
The rhythm starts out as a 1st degree block with a PR interval of .32 and then transitions into a type I block and then a type II block.
4.
The strip begins with polymorphic ventricular tachycardia which abruptly changes to a sinus bradycardia. The first P wave is negative and appears junctional. The following complexes are sinus in origin. The QT interval is prolonged which may help to explain why the patient was having these runs polymorphic ventricular tachycardia. PR: .12 sec, QRS: .08 sec, QT: .56 sec.
5.
The rhythm is regular with a rate of 93/min. The P waves are upright and are associated with the QRS complexes. No ectopic beats are present. A ventricular pacer spike occurs before each QRS complex. PR: .16 sec, QRS: .16 sec, QT: .42 sec.
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2.
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4.
5.
Answers
1.
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| Spraventricular tacycardia |
The rhythm is regular. The rate is 166/min. No readily identifiable P waves are present. No ectopic beats are present. The QRS is narrow, 0.08 sec. The QT interval is 0.28 sec.
2.
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| Sinus tachycardia with 1st degree block and a PVC |
The rhythm is irregular due to the PVC. The rate is 110/min. The P waves are upright and precede QRS complex. The PR interval is prolonged. A single PVC is present and it coupled with a P wave. PR: .24 sec, QRS: .08 sec, QT: .36 sec.
3.
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| 1st degree block changing to 2nd degree type II |
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| Polymorphic ventricular tachycardia changing to sinus bradycardia |
The strip begins with polymorphic ventricular tachycardia which abruptly changes to a sinus bradycardia. The first P wave is negative and appears junctional. The following complexes are sinus in origin. The QT interval is prolonged which may help to explain why the patient was having these runs polymorphic ventricular tachycardia. PR: .12 sec, QRS: .08 sec, QT: .56 sec.
5.
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| Ventricular paced |
The rhythm is regular with a rate of 93/min. The P waves are upright and are associated with the QRS complexes. No ectopic beats are present. A ventricular pacer spike occurs before each QRS complex. PR: .16 sec, QRS: .16 sec, QT: .42 sec.
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