Practice EKG Rhythm Strips 99
Identify the following rhythms.
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Answers
1.
The rhythm is slightly irregular with a rate of 55/min. The P waves are negative and precede the QRS complex. No ectopic beats are noted. PR: .12 sec, QRS: .08 sec, QT: .44 sec.
2.
The rhythm is regular. The rate is 79/min. There are uniform, upright P waves that are associated with the QRS complexes. The P waves are tall suggesting right atrial enlargement. No ectopic beats are seen. PR: .16 sec, QRS: .12 sec, QT: .44 sec.
3.
The rhythm is irregular. The PR interval between the 2nd and 3rd complex is .44 sec and the PR interval between the 9th and 10th complex is .84 sec. No ectopic beats are seen. PR: .12 sec QRS: .08 sec, QT: .36 sec.
4.
The rhythm is regular with a ventricular rate of 48/min. The P waves are associated with a QRS complex and are positive. No ectopic beats are present. PR: .12 sec, QRS: .08 sec, QT: .36 sec.
5.
The rhythm is regular and the rate is 125/min. The P waves are uniform, upright, and precede the QRS complex. No ectopic beats are seen. There is inversion of the T wave. PR: .12 sec, QRS: .08 sec. QT: .36 sec.
1.
2.
3.
4.
5.
Answers
1.
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| Junctional rhythm |
The rhythm is slightly irregular with a rate of 55/min. The P waves are negative and precede the QRS complex. No ectopic beats are noted. PR: .12 sec, QRS: .08 sec, QT: .44 sec.
2.
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| Normal sinus rhythm |
The rhythm is regular. The rate is 79/min. There are uniform, upright P waves that are associated with the QRS complexes. The P waves are tall suggesting right atrial enlargement. No ectopic beats are seen. PR: .16 sec, QRS: .12 sec, QT: .44 sec.
3.
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| Sinus arrhythmia |
The rhythm is irregular. The PR interval between the 2nd and 3rd complex is .44 sec and the PR interval between the 9th and 10th complex is .84 sec. No ectopic beats are seen. PR: .12 sec QRS: .08 sec, QT: .36 sec.
4.
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| Sinus bradycardia |
The rhythm is regular with a ventricular rate of 48/min. The P waves are associated with a QRS complex and are positive. No ectopic beats are present. PR: .12 sec, QRS: .08 sec, QT: .36 sec.
5.
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| Sinus tachycardia |
The rhythm is regular and the rate is 125/min. The P waves are uniform, upright, and precede the QRS complex. No ectopic beats are seen. There is inversion of the T wave. PR: .12 sec, QRS: .08 sec. QT: .36 sec.
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