Practice EKG Rhythm Strips 122
Identify the following rhythm strips.
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Answers
1.
The underlying rhythm is regular. There rate is 62. There are upright P waves before each QRS complex. There is a single PVC. PR: 30 sec, QRS: .08 sec, QT: .36 sec
2.
The underlying rhythm is regular. There are upright P waves before each QRS complex. Ther is a single PAC, 4th complex, that has it's P wave hidden in the preceding T wave. Notice the change in the morphology of the T wave as compared to the other T waves in the strip. PR: .32 sec, QRS: .12 sec, QT: .40 sec.
3.
The rhythm is regular. The rate is 63. There are 3:1 flutter waves present. No ectopy is noted. PR: --- QRS: .08 sec QT: .28 sec
4.
The P-P and R-R intervals are consistent. The atrial rate is 83. The ventricular rate is 45. There are nonconducted P waves present. No ectopic beats are noted. PR interval: .20 sec, QRS: .12 sec, QT: .48 sec.
5.
The rhythm is irregular owing to the long arrest interval. The rate is 30/minute. There are upright P waves before each QRS complex. No ectopic beats are noted. The arrest interval is 3.12 sec. PR: .16 sec. QRS: .10 sec, QT: .40 sec.
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2.
3.
4.
5.
Answers
1.
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| 1st degree AV block with a PVC |
The underlying rhythm is regular. There rate is 62. There are upright P waves before each QRS complex. There is a single PVC. PR: 30 sec, QRS: .08 sec, QT: .36 sec
2.
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| 1st degree AV block with a PAC |
The underlying rhythm is regular. There are upright P waves before each QRS complex. Ther is a single PAC, 4th complex, that has it's P wave hidden in the preceding T wave. Notice the change in the morphology of the T wave as compared to the other T waves in the strip. PR: .32 sec, QRS: .12 sec, QT: .40 sec.
3.
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| Atrial flutter |
The rhythm is regular. The rate is 63. There are 3:1 flutter waves present. No ectopy is noted. PR: --- QRS: .08 sec QT: .28 sec
4.
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| 2nd degree AV block type II |
The P-P and R-R intervals are consistent. The atrial rate is 83. The ventricular rate is 45. There are nonconducted P waves present. No ectopic beats are noted. PR interval: .20 sec, QRS: .12 sec, QT: .48 sec.
5.
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| Sinus bradycardia with sinus arrest |
The rhythm is irregular owing to the long arrest interval. The rate is 30/minute. There are upright P waves before each QRS complex. No ectopic beats are noted. The arrest interval is 3.12 sec. PR: .16 sec. QRS: .10 sec, QT: .40 sec.
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