Rules for Idioventricular Rhythm
Regularity: R-R intervals are usually regular, overall rhythm is usually regular. Rate: The rate is usually 20-40 beats/min. Sometimes the rate may drop below 20. P WAVE: There are no P waves present. PRI: PRI is not able to be measured because there are no P waves. QRS: Measures more than 0.12 seconds. The QRS complex is usually wide and bizarre. 