N334 Cardiac Dysrhythmias: ECG Interpretation Worksheet The

N334 Cardiac Dysrhythmias: ECG Interpretation Worksheet The following rhythm strips are for your practice. Work on these individually to assure you understand how to read an ECG and identify the rhythm. (All strips are six-second strips unless otherwise indicated.) Discuss the cardiac cycle. What are the 2 types of action potentials and what do they indicate? Break down the cardiac cycle into phases 0-4 and discuss what occurs at each stage? (i)Phase 0 – “Rapid depolarization phase” ¬ Begins when the cell receives an impulse ¬ Na moves into the cell ¬ K leaves the cell ¬ Ca moves slowly into the cell ¬ Represented by QRS complex (ii) List the steps in the conducting system pathway. What occurs at each step? Measurement of time on ECG paper: Each small box = 5 small boxes = ? box = ? seconds 5 large boxes = Normal strip = ? blocks? = ? seconds Identify the waveforms, what occurs during the specific wave and abnormal concerns. List the steps in approaching a rhythm strip. (Identify a normal PR interval in the appropriate step, but not testing on it in this class.) ECG Criteria: 7. ECG Criteria: Heart rate Rhythm Interpretation Complications 8. ECG Criteria: Heart rate Rhythm Interpretation Complications 9. ECG Criteria: Heart rate Rhythm Interpretation Complications 10. ECG Criteria: Heart rate Rhythm Interpretation Complications 11. ECG Criteria: Heart rate Rhythm Interpretation Complications 12. ECG Criteria: Heart rate Rhythm Interpretation Complications 13. ECG Criteria: Heart rate Rhythm Interpretation Complications 14. ECG Criteria: Heart rate Rhythm Interpretation Complications 15. ECG Criteria: Heart rate Rhythm Interpretation Complications 16. ECG Criteria: Heart rate Rhythm Interpretation Complications 17. ECG Criteria: Heart rate Rhythm Interpretation Complications 18. ECG Criteria: Heart rate Rhythm Interpretation Complications 19. ECG Criteria: Heart rate Rhythm Interpretation Complications 20. ECG Criteria: Heart rate Rhythm Interpretation Complications

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