Practice ECG Rhythm Strips 106
Identify the following rhythms.
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Answers
1.
The rhythm is regular with a rate of 75/min. There a pacer spikes before the P waves and the QRS complexes. No ectopic beats are noted. PR: .16 sec, QRS: .16 sec, QT: .44 sec.
2.
The rhythm is irregular and the rate is 84/min No P waves are present but there are fibrillatory waves between the QRS complexes. No ectopy is present. PR: ---, QRS: .16 sec, QT: .36 sec.
3.
The rhythm is irregular due to the atrial ectopic beast. The rate is 66/min. P waves are upright and precede a QRS complex. PACs are present, 3rd and 9th complexes. PR: .12 sec, QRS: .08 sec, QT: .40 sec.
4.
The rhythm is regular with a ventricular rate of 120/min. Upright P waves precede the QRS complexes. The P waves have merged with the T wave of the preceding complex. No ectopic beats are present. PR: .16 sec, QRS: .06, QT: .32 sec.
5.
The rhythm is irregular with a rate of 102/min. There are P waves but they are buried within the T wave of the preceding complexes. The PR interval is prolonged. After complexes 8 and 12 there is a pause followed by ventricular escape beats. PR: .28 sec, QRS: .08 sec, QT: .36 sec.
1.
2.
3.
4.
5.
Answers
1.
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| AV paced |
The rhythm is regular with a rate of 75/min. There a pacer spikes before the P waves and the QRS complexes. No ectopic beats are noted. PR: .16 sec, QRS: .16 sec, QT: .44 sec.
2.
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| Atrial fibrillation |
The rhythm is irregular and the rate is 84/min No P waves are present but there are fibrillatory waves between the QRS complexes. No ectopy is present. PR: ---, QRS: .16 sec, QT: .36 sec.
3.
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| NSR with PACs |
The rhythm is irregular due to the atrial ectopic beast. The rate is 66/min. P waves are upright and precede a QRS complex. PACs are present, 3rd and 9th complexes. PR: .12 sec, QRS: .08 sec, QT: .40 sec.
4.
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| Sinus tachycardia |
The rhythm is regular with a ventricular rate of 120/min. Upright P waves precede the QRS complexes. The P waves have merged with the T wave of the preceding complex. No ectopic beats are present. PR: .16 sec, QRS: .06, QT: .32 sec.
5.
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| NSR with 1st degree block and ventricular escape beats |
The rhythm is irregular with a rate of 102/min. There are P waves but they are buried within the T wave of the preceding complexes. The PR interval is prolonged. After complexes 8 and 12 there is a pause followed by ventricular escape beats. PR: .28 sec, QRS: .08 sec, QT: .36 sec.
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