day 2 arrhythmia revised

day 2 arrhythmia revised - Center for Nursing Education...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Center for Nursing Education 2008 Telemetry Arrhythmia Review II Ventricular Rhythms Intraventricular Conduction Delays Atrioventricular Blocks Pacemaker Rhythms 2 Center for Nursing Education 2008 Ventricular Rhythms Premature Ventricular Contractions Ventricular Tachycardia Torsades de Pointes Ventricular Fibrillation Idioventricular Rhythm Accelerated Idioventricular Rhythm Asystole Pulseless Electrical Activity 3 Center for Nursing Education 2008 The Ventricles The hearts least efficient pacemaker site Generates impulses at a rate of 20-40 beats per minute 4 Center for Nursing Education 2008 The Ventricles assume responsibility when SA node fails to discharge SA node impulse is blocked Rate of discharge from SA node is slower than that of ventricles AV node fails to discharge Irritable site in ventricles produces an early beat or rapid rhythm 5 Center for Nursing Education 2008 Ventricular Rhythms When an ectopic site in the ventricles assumes pacing responsibilities, the impulse does not travel on the normal conduction pathway Stimulation of the ventricles does not happen synchronously Result: QRS complex is abnormally shaped, and wider than 0.12 seconds 6 Center for Nursing Education 2008 Premature Ventricular Complexes (PVCs) Arises from irritable focus in ventricle Caused by enhanced automaticity or reentry Premature, before the next expected sinus beat Ventricles are depolarized early and this results in an abnormally wide and distorted QRS 7 Center for Nursing Education 2008 Premature Ventricular Complexes (PVCs) A & V Rate: varies with underlying rhythm Rhythm : regular except for early beat P Waves : usually absent or retrograde PR Interval: none with PVC QRS : > 0.12 seconds, bizarre and wide, T wave usually in opposite direction of QRS 8 Center for Nursing Education 2008 Premature Ventricular Complex (PVC) 9 Center for Nursing Education 2008 PVC: Types Unifocal vs. multifocal Bigeminy, Trigeminy, Quadreminy Couplets or Triplets 10 Center for Nursing Education 2008 Uniform and Multiform PVCs Premature Ventricular beats that look the same in the same lead and originate from the same anatomic site (focus) are called Uniform (unifocal) . Premature Ventricular beats that appear different from one another in the same lead are called Multiform (multifocal) . Multifocal PVCs often, but not always, arise from different anatomic sites. 11 Center for Nursing Education 2008 Premature Ventricular Contractions (PVCs) Uniform 12 Center for Nursing Education 2008 Multifocal PVCs 13 Center for Nursing Education 2008 What do I call the pattern?...
View Full Document

Page1 / 114

day 2 arrhythmia revised - Center for Nursing Education...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online