19 results
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... aka Complete Heart ... rhythm with complete ... ecg #diagnosis #electrocardiogram ... #classification
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... Mobitz I Heart Block ... Pacemaker 3rd Degree, Complete ... HeartBlocks #Types #Classification ... Diagnosis #EKG #electrocardiogram
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
: • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block ... #Classes #pathophysiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Syndrome • SA Block ... • AV Block (ISt ... Differential #Diagnosis #Algorithm ... #causes
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
AFIutter + variable block ... whether AF is cause ... Tx: Underlying cause ... Beware AV nodal blockers ... Narrow #Irregular #causes
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Classic Digoxin-Associated ... Fibrillation with Complete ... Heart Block and ... Tachycardia with 2:1 AV Block ... cardiology #ecg #ekg #electrocardiogram
Bradycardia Diagnostic and Management Algorithm

CONSIDER ETIOLOGY (not inclusive): 
 - STRUCTURAL: sick sinus, AV block, ischemia,
and Management Algorithm ... sick sinus, AV block ... - TOX: beta-blockers ... LIFE THREATENING CAUSES ... #Bradycardia #Algorithm
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
: • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block ... #Classes #pathophysiology
Deep T Wave Inversions - Differential
Normal variants 
  A. Juvenile T wave pattern
bundle branch blocks ... bundle branch block ... Differential #Diagnosis #Causes ... Cardiology #ECG #EKG #Electrocardiogram
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Bundle Branch Block ... bundle-branch block ... voltage Other Causes ... cardiology #ecg #ekg #electrocardiogram