Practice EKG Rhythm Strips 218
Identify the following rhythms.
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Answers
1.
The rhythm is irregular. The rate is 70/min. There are uniform, upright P waves before each QRS complex. No ectopic beats are noted. PR: . 20 sec, QRS: .08 sec, QT: .38 sec. Interpretation: Sinus arrhythmia
2.
The rhythm is irregular. The heart rate is 100/min. The P waves are positive and precede each QRS complex. There is a 1.08 second sinus pause that follows the 3rd complex. No ectopic beats are noted. PR: .12 sec, QRS: .08 sec, QT: .32 sec. Interpretation: Sinus rhythm with a pause
3.
The rhythm is irregular. The rate is 50/min. P waves are present, upright, and associated with a QRS complex. The PR interval is prolonged. No ectopic beats are noted. PR: .22 sec, QRS: .08 sec, QT: .40 sec. Interpretation: Sinus bradycardia with sinus arrhythmia
4.
The rhythm is regular with a rate of 53/min. The P waves are paired with a QRS complex. No ectopic beats are seen. PR: .18 sec, QRS: ..10 sec, QT: .40 sec. Interpretation: Sinus bradycardia
5.
The rhythm is regular with a heart rate of 100/min. The P waves are upright and have a corresponding QRS complex. No ectopic beats are seen. PR: .16 sec, QRS: .08 sec, QT: .28 sec. Interpretation: Normal sinus rhythm
1.
2.
3.
4.
5.
Answers
1.
 |
| Sinus arrhythmia |
The rhythm is irregular. The rate is 70/min. There are uniform, upright P waves before each QRS complex. No ectopic beats are noted. PR: . 20 sec, QRS: .08 sec, QT: .38 sec. Interpretation: Sinus arrhythmia
2.
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| Sinus rhythm with a pause |
The rhythm is irregular. The heart rate is 100/min. The P waves are positive and precede each QRS complex. There is a 1.08 second sinus pause that follows the 3rd complex. No ectopic beats are noted. PR: .12 sec, QRS: .08 sec, QT: .32 sec. Interpretation: Sinus rhythm with a pause
3.
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| Sinus bradycardia with sinus arrhythmia |
The rhythm is irregular. The rate is 50/min. P waves are present, upright, and associated with a QRS complex. The PR interval is prolonged. No ectopic beats are noted. PR: .22 sec, QRS: .08 sec, QT: .40 sec. Interpretation: Sinus bradycardia with sinus arrhythmia
4.
 |
| Sinus bradycardia |
The rhythm is regular with a rate of 53/min. The P waves are paired with a QRS complex. No ectopic beats are seen. PR: .18 sec, QRS: ..10 sec, QT: .40 sec. Interpretation: Sinus bradycardia
5.
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| Normal sinus rhythm |
The rhythm is regular with a heart rate of 100/min. The P waves are upright and have a corresponding QRS complex. No ectopic beats are seen. PR: .16 sec, QRS: .08 sec, QT: .28 sec. Interpretation: Normal sinus rhythm
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