Relier Pairs Ch. 8 Cardiac Conduction Version en ligne Cardiac Electrical System par Linu John 1 P wave 2 T wave 3 QRS Complex atrial depolarization ventricular repolarization ventricular depolarization 1 interval 2 wave 3 complex 4 negative deflection 5 positive deflection 6 Isoelectric line wave plus a segment downward deflection several waves that are measured together upward deflection baseline or flat portion deflection away from the baseline 1 Purkinje Fibers 2 SA node 3 AV Node 4 Bundle of His 5 Bundle Branches 20-40 bpm 40-60 bpm (named after a MD) 60-100 bpm 40- 60 bpm (has two routes) 40-60 bpm (step after SA node) 1 PR Interval 2 QRS Interval 3 QT interval 4 ST segment 5 R-R interval should stay at baseline 0.12- 0.20 second 0.36 to 0.44 second should be regular less than 0.12 second
