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