Rhythm

  Sinus arrhythmia » If the difference between the maximum and minimum P-P (R-R) is more than 0.1 sec (or more than 10% compared to the mean), then this is sinus arrhythmia» Respiratory arrhythmia : sinus arrhythmia is associated with the phases of breathing » No difference in P-P values – rigid sinus node (damage to sinus node cells) Normal rhythm : » Must be sinus, that’s means each P wave is followed by QRS complex » Must be regular – the difference between the longest and the shortest R-R interval does not exceed 0.1 sec » Must be equality of