Cardiac Dysrhythmias
Sinus Dysrhythmias
PPT Slide
Respiratory Arrhythmia
R-R Interval Widens During Expiration
Sinus Arrest
Escape Or Rescue Beats
Rescue Beats May Have Their Origin High Up In The Atria Or Down Low Close To The AV Node Or Even In The Ventricles.
If The Ectopic Pacemaker Is Close To The SA Node, It Will Be An Atrial Escape Beat. It Will Have These Features :
Atrial Escape Or Rescue Beat
If The Rescue Beat Is Close To The AV Node, Then It Will Likely Be A Junctional Escape Beat
Characteristics Of A Junctional Escape Beat :
Junctional Rescue Or Escape Beat
If The Rescue Beat Is Located In The Ventricles, Then It Is A Ventricular Pacemaker That Is Activated To Rescue The Heart
Characteristics Of A Ventricular Rescue Beat Are :
Ectopic Pacemakers Have Their Own Firing Rates
Ectopic Pacemaker Rates
What Can Cause The SA Node To Go Into Sinus Arrest ?
Wandering Pacemaker
Characteristics Of A Wandering Pacemaker :
Wandering Atrial Pacemaker
Sick Sinus Syndrome
Sick Sinus Syndrome Characterized By :
Ectopic Supraventricular Dysrhythmias
Premature Atrial Contractions (PAC’s Or APB’s)
Causes Of PAC’s :
Digitalis Toxicity
Premature Atrial Contraction
PAC’s Can Deteriorate Into :
Premature Junctional Beats (PJB’s)
Characteristics Of PJB’s :
Premature Junctional Beat
Sustained Supraventricular Dysrhythmias
PSVT Or PAT’s
Causes Are :
Characteristics Of PSVT Are :
Paroxysmal Atrial Tachycardia
Carotid Massage Can Bring A Person Out Of PSVT
Exercise
Atrial Flutter
Characteristics Of Atrial Flutter :
QRS Complexes Are Normal & Regular
Causes Of Atrial Flutter :
Pulmonary Emboli
Atrial Fibrillation
Characteristics Are :
Symptoms
Can A Patient Chronically Live With These Dysrhythmias ?
Inherent Dangers
Patients Can Auto-Embolize Organ Systems If The Heart Spontaneously Converts Out Of The Dysrhythmia
Patients Must First Be Anti-Coagulated & Then Converted Out Of The Dysrhythmia
Email: David.Arnall@NAU.EDU , DAArnall@AOL.COM
Home Page: http://jan.ucc.nau.edu/~daa/heartlung/
Download presentation source