CONCEPT OF

Notes

CONCEPT OF PERFUSION: DYSRHYTHMIA NUR 213 UNIT 2 Electrical Conduction • https://www.youtube.com/watch? v=v3b-YhZmQu8 ECG Interpretation • P wave: atrial depolarization • PR Interval: rate of cardiac impulse from the atria to the ventricle • QRS complex: Ventricular -multiply X10 to get HR (ina 6 Sec stripLoading… depolarization • ST Segment: end of QRS to start of T wave • T wave: Ventricular repolarization • QT interval: time for ventricle to contract and ECG Interpretation: ECG Analysis 1. Calculate heart rate. Count the number of R waves in 6 seconds and multiply by 10. Can be used for regular or irregular rhythms 2. 4. 5. 6. 7. 8. Determine if heart rhythm is regular. 3. Assess for P waves. Measure PR interval (0.12-0.20 sec normal) Loading… Measure duration of QRS complex (.06-.10 sec normal) Assess the ST segment (should be at baseline) Observe for changes in T wave. Measure length of QT interval (<.44 sec normal) 9. Interpret the rhythm What is the Rhythm? Rate: 70 Dpm Rhythm:normal Sinus Bradycardia Bradycardia means a slow heartbeat. It occurs when the SA node sends an electrical impulse slower than 60 bpm. Bradycardia Etiology ● Genetics ● MI/CAD ● Hypoxia ● Increased IC...