Atrial fibrillation and atrial flutter

This video is amazing in understanding the concept of atrial flutter and fibrillation. It teaches how an ECG is used in diagnosis of irregular heart functioning and how the different shapes of waves help us in recognizing different diseases. Timeline 0:00 Introduction 0:03 Revision for calculation of rate and rhythm 1:23 Irregular rhythm (r-r wave) 2:58 Normal and abnormal rate (flutter and fibrillation) 4:16 Fibrillatory waves 6:03 AV disassociation in QRS complex 6:25 Narrow in QRS complex 7:04 Clinical diagnosis of Atrial fibrillation 7:58 Atrial Flutter rate 9:29 Regular R-r interval 10:10 F waves 12:31 Ratio of atrial flutter 13:12 AV association 13:45 QRS complex: normal