Practice EKG Rhythm Strips 121
Identify the following rhythms.
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Answers
1.
The rhythm is irregular. The rate is 70. There are upright P waves before each QRS complex. The R-R interval between the 1st and 2nd complex is .76 sec and the R-R interval between the 5th and 6th complex is .88 sec. The PR interval is .16 sec. QRS: .08 sec QT: .44
2.
The rhythm is regular. The rate is 57. There are upright P waves before each QRS complex. There are no ectopic beats. PR: .20 sec, QRS: .08 sec, QT: .40 sec.
3.
The rhythm is regular. The rate is 62. There are no P waves before each QRS complex. There are no ectopic beats. PR: --- QRS: .08 sec, QT: .38 sec. Recall that the inherent rates of junctional rhythms is as follows: junctional rhythm is 40-60, accelerated junctional 60-100, junctional tachycardia > 100.
4.
Remember to verify asystole in another lead. Check to make sure that all the leads are on the patient and that all the wires are properly connected. Increase the gain or size of the leads to verify that this in not a fine ventricular fibrillation, which would be a shockable rhythm. Continue with CPR, given Epineprhine 1mg IV or Vasopressin 40 units and assess for the underlying causes of the rhythm: hypoxia, hypovolemia, acidosis, hypothermia, hypo- or hyperkalemia, tension pneuothorax, toxins or tablets (overdose), coronary or pulmonary thrombosis.
5.
The rhythm is irregular. The rate is 80/min. There are upright P waves before each QRS complexes. There are ectopic atrial beats every other beat. The P wave morphology is very similar to the P waves of sinus origin. However the T waves on the sinus beats are smaller and have a more rounded appearance whereas the T waves on the ectopic beats are larger and have a sharper appearance. PR: 16 sec, QRS: .08 sec QT: .32 sec
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2.
3.
4.
5.
Answers
1.
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| Sinus arrhythmia |
The rhythm is irregular. The rate is 70. There are upright P waves before each QRS complex. The R-R interval between the 1st and 2nd complex is .76 sec and the R-R interval between the 5th and 6th complex is .88 sec. The PR interval is .16 sec. QRS: .08 sec QT: .44
2.
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| Sinus bradycardia |
The rhythm is regular. The rate is 57. There are upright P waves before each QRS complex. There are no ectopic beats. PR: .20 sec, QRS: .08 sec, QT: .40 sec.
3.
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| Accelerated junctional rhythm |
The rhythm is regular. The rate is 62. There are no P waves before each QRS complex. There are no ectopic beats. PR: --- QRS: .08 sec, QT: .38 sec. Recall that the inherent rates of junctional rhythms is as follows: junctional rhythm is 40-60, accelerated junctional 60-100, junctional tachycardia > 100.
4.
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| Asystole |
Remember to verify asystole in another lead. Check to make sure that all the leads are on the patient and that all the wires are properly connected. Increase the gain or size of the leads to verify that this in not a fine ventricular fibrillation, which would be a shockable rhythm. Continue with CPR, given Epineprhine 1mg IV or Vasopressin 40 units and assess for the underlying causes of the rhythm: hypoxia, hypovolemia, acidosis, hypothermia, hypo- or hyperkalemia, tension pneuothorax, toxins or tablets (overdose), coronary or pulmonary thrombosis.
5.
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| Atrial bigeminy |
The rhythm is irregular. The rate is 80/min. There are upright P waves before each QRS complexes. There are ectopic atrial beats every other beat. The P wave morphology is very similar to the P waves of sinus origin. However the T waves on the sinus beats are smaller and have a more rounded appearance whereas the T waves on the ectopic beats are larger and have a sharper appearance. PR: 16 sec, QRS: .08 sec QT: .32 sec
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