telemetry correctly answered to pass graded A+ 2023/2024

telemetryPurkinje fibers Av goes to bundle of his to where? lead placement PR 0.12-0.2 seconds QRS 0.04-0.12 QT 0.34-0.43 ST 0.12 T 0.16 p wave atrial contraction QRS complex ventricular contraction T wave ventricular repolarization normal sinus rhythm -normal intervals -rate 60-100 -will walk out Sinus Bradycardia SA is in control rate < 60 bpm normal intervals walks out sinus tachycardia SA is in control rate higher than 100 bpm normal intervals walks out atrial fibrillation SA not in control random cells are firing in atria rate determined by AV node -rate often high: Rapid ventricular response does not walk out blood clot biggest concern for fibrillation? atrial flutter Sa not in control one random cell firing rapidly rate determined by AV node "saw tooth pattern" does not walk out Supraventricular tachycardia SA not in control one cell firing rapidly rate determined by AV QRS can be narrow or wide may look like sinus tach, but its higher Junctional Rhythm Av in control (ventricles working) rate: 40-60 bpm inverted or no P wave walks out Accelerated Junctional Rhythm Av is in control No p wave faster than normal rate greater than 60 walks out beta blockers heart blocks similar cause First degree heart block -slow electrical conduction through atria PR greater than 0.2 rate can be slow or normal QRS and QT the same (usually not treated)