Rules for Atrial Flutter
Regularity: The atrial rate is regular. The ventricluar rate will usually be regular, but only if the AV node conducts the impulses in a consistent manner. Otherwise, the ventricular rate will be irregular
Rate: The atrial rate is normally between 250-350. Ventricular rate depends on conduction through the AV node to the ventricles.
P WAVE: The P waves will be well defined and have a "sawtooth" pattern to them.
PRI: Due to the unusual configuration of P waves, the PRI is not measured with Atrial Flutter
QRS: Measures less than 0.12 seconds.
