ECG Rhythms and Cardiac Block Types Nursing Quick Reference – Practice Questions, Answers & Study Guide

ECG Rhythms and Cardiac Block Types Nursing Quick Reference
ECG Rhythms and Cardiac Block Types: Nursing Quick Reference
Study online at https://quizlet.com/_jp2b5j

1. Normal Sinus Rhythm Regular rhythm, normal rate, P before every QRS.

2. Sinus Tachycardia Regular rhythm, rate >100 bpm.

3. Sinus Bradycardia Regular rhythm, rate <60 bpm.

4. Atrial Fibrillation Irregularly irregular, no distinct P waves.

5. Atrial Flutter Saw-tooth flutter waves.

6. Ventricular Fibrillation Chaotic rhythm, no organized QRS.

7. Ventricular Tachycardia Fast wide-complex rhythm.

8. Polymorphic VT with First-De- PR interval >0.20 sec, all beats conducted.
gree AV Block

9. Torsades de Pointes Twisting pattern.

10. Second-Degree AV Block Type I PR gets longer, then a dropped QRS.
(Wenckebach)

11. Second-Degree AV Block Type II Constant PR intervals with dropped QRS complexes.

12. Third-Degree AV Block P waves and QRS complexes have no relationship.

13. Asystole Flatline; no electrical activity.

14. Pulseless Electrical Activity (PEA) Electrical activity present but no pulse.




1/1