Bradycardia and Tachycardia

This is a good video to understand with bradycardia and tachycardia. It shows ECG for given cases and then discusses that how we can evaluate and diagnose the respective conditions. Timeline 0:00 Introduction 0:13 Rate of given ECG (Bradycardia) 1:00 Regular R-r interval 1:50 P wave 2:40 AV association 2:55 QRS wide 4:10 Diagnosis 6:02 Rate of 2nd ECG (tachycardia) 7:40 Regular R-r interval 8:27 P wave and T wave mixing up 10:20 AV association 10:51 Narrow QRS 11:24 How to differentiate from SVT, Atrial flutter