Basic Dysrhythmia Complete Guide 2023

Basic Dysrhythmia Complete Guide 2023 Sinus Rhythm 60-100bpm Present P-wave PRI 0.12-0.20 seconds QRS 0.12 seconds Sinus Bradycardia 40-60bpm Present P-wave PRI 0.12-0.20 seconds QRS 0.12 seconds 00:0701:38 Sinus Tachycardia 100-160bpm Present P-wave PRI 0.12-0.20 seconds QRS 0.12 seconds Sinus arrhythmia Irregular Normal or slow Present P-Wave PRI 0.12-0.20 seconds QRS 0.12 seconds Sinus Arrest/Exit block Regular rhythm w/ pause P-wave not seen until next complex Atrial Fibrillation (A-Fib) Grossly irregular 400 ventricular varies Wavy P-wave PRI not measureable QRS 0.12 seconds Atrial Flutter Regular or Irregular 250-400 (depending on conduction) "Saw-tooth" P-waves PRI not measureable QRS 0.12 seconds Paced Atrial "Spike" before P-wave 1° AVB Rate determined by rhythm 1 P-wave to each QRS PRI prolonged 0.20 seconds QRS 0.10 2° AVB Type I (Wenkebach) "Long, Long, Longer, Dropped... then you have a Wenkebach" Persistent P-waves until not included PRI progressively lengthen QRS 0.10 2° AVB Type II (Mobitz) Irregular ventricular P-wave before each QRS until no QRS PRI normal until no QRS QRS 0.10 2° AVB 2:1 Every other beat has a lone P-wave 00:0201:38 3° AV Block (Complete Heart Block) P-save has no relation to QRS PRI varies greatly QRS normal-wide Bundle Branch Block (BBB) Rate determined by rhythm Normal P-wave PRI 0.12-0.20 QRS wide 0.12 Bigeminy every other beat is premature Trigeminy pattern in which every third complex is a premature beat Premature Atrial Contraction (PAC) Irregular Rate determined by rhythm P-wave is premature and abnormally sized PRI 0.12-0.20 seconds QRS 0.12 seconds Premature Junctional Contraction (PJC) Irregular Rate determined by rhythm P-wave is premature and abnormally sized PRI can be prolonged QRS narrow Junctional Rhythm (Junctional Escape Rhythm) 40-60bpm Absent P-wave PRI not measureable QRS 0.12 seconds Junctional Tachycardia 100bpm Inverted/Absent P-wave PRI not measureable QRS 0.12 Accelerated Junctional 60-100bpm Inverted/Absent P-wave PRI not measureable QRS 0.12 seconds Wandering Atrial Pacemaker Occasional "spike" for P-wave Premature Ventricular Complex (PVC) Usually regular Rate determined by rhythm Absent P-wave PRI not measureable QRS premature and wide Idioventricular Rhythm Regular 20-40bpm Absent P-wave PRI N/A QRS wide 0.10 Accelerated Idioventricular Rhythm Regular 40-100bpm Absent P-wave PRI N/A QRS 0.12 wide & bizarre Supraventricular Tachycardia (SVT) Regular 150bpm Not discernible P-wave PRI can't measure QRS narrow Ventricular tachycardia (V-tach) Regular 140-250bpm No P-wave PRI N/A QRS wide Ventricular fibrillation (V-fib) No rhythm No P-wave PRI N/A QRS absent Paced Ventricular "Spike" after P-wave to fire ventricular contraction Torsades de pointes (polymorphic VT) Regular of irregular 200bpm No P-waves PRI N/A QRS twisting "Ribbon" Ventricular Standstill (Asystole) Regular Atrial beats Only atrial depolarization exists