* 22 . Name this rhythm atrial fibrillation atrial flutter atrial tachycardia sinus tachycardia* 23. Name this rhythm 1st degree AV block Sinus Arrhythmia Junctional Rhythm Idioventricular Rhythm*24. Name this rhythm 1st degree AV block 2nd degree AV block Type 1 (Wenkebach) 2nd degree AV block Type 2 3rd degree AV block.