10 results
Comparison of Multifocal Atrial Tachycardia, Atrial Fibrillation and Atrial Flutter
Multifocal Atrial Tachycardia - Atrial Rate >
of Multifocal Atrial ... "Saw tooth" flutter ... AtrialTachycardia #AFib ... Comparison #Diagnosis #Cardiology ... #Electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
abberancy - N B Afib ... (3) SVTs - atrial ... 200ms from longer pause ... EKG #diagnosis #electrocardiogram ... #cardiology #differential
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Arrhythmias • SA ... > 100 bpm) • SA ... Fibrillation (V-Fib ... Differential #Diagnosis #Causes ... #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Sinus Syndrome • SA ... interval) • AFib ... tachyarrhythmias #Cardiology ... #causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... • AFib/AFlutter ... Sinus Syndrome (SA ... Syndrome #Syncope #Cardiology ... #causes
Causes of Atrial Fibrillation

Heart disease 
 - Aging heart 
 - Cardiomyopathies 
 - Congestive heart
Causes of Atrial ... Sleep apnea #Atrial ... #Fibrillation #AFib ... #Cardiology #Pathophysiology
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
evaluating for other causes ... Arrhythmia* (e.g., A-Fib ... also a result of atrial ... AcutePE #diagnosis #cardiology ... #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
Waves/Fibrillary = afib ... • Saw-Tooth ... = Atrial Flutter ... Interpretation #ECG #Electrocardiogram ... #cardiology #diagnosis
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Atrial depolarization ... contraction of atrial ... current) causing ↓SA ... #Classes #pathophysiology ... #phases #cardiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... current) causing ↓SA ... inotropy) ACCP Cardiology ... #Classes #pathophysiology ... #cardiology