1997 results
Action potential in cardiomyocytes
The action potential in typical cardiomyocytes is composed of 5 phases (0-4), beginning
phase Phase 0: Depolarization ... Phase 1: Early repolarization ... phase Phase 3: Repolarization ... Myocytes #Phases #Depolarization ... #Repolarization
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Phase I - Initial Repolarization ... - Ventricular Repolarization ... prolong AV node repolarization ... interval (delays time repolarization ... prolong AV node repolarization
Action Potential: Depolarization and repolarization of a neuron

#ActionPotential #Depolarization #Repolarization #Neuron #Neurology #Pathophysiology
Action Potential: Depolarization ... and repolarization ... ActionPotential #Depolarization ... #Repolarization
Differential Diagnosis for ST Segment Elevations
 - ACUTE STEMI 
 - PULMONARY EMBOLISM 
 - LBBB
- BENIGN EARLY REPOLARIZATION ... #STSegment #STElevation
Causes of ST Elevation in ECG

#STElevation #STEMI #ECG #EKG #Electrocardiogram #Causes #Differential #ABCHELP #Mnemonic
Causes of ST Elevation ... in ECG #STElevation
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
and magnitude of depolarization ... phase 4 to slow depolarization ... prolong AV node repolarization ... interval (delays time repolarization ... prolong AV node repolarization
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
for the rapid depolarization ... • Slows depolarization ... involved in phase 3 repolarization ... • Prolongs repolarization
ST Elevation MI Criteria 
#Diagnosis #Cardiology #ECG #EKG #STEMI #STElevationMI #Criteria #FOAMCast
ST Elevation MI ... ECG #EKG #STEMI #STElevationMI
ECG characteristics of early repolarization
 - The ST segment elevations are concave and most pronounced in
characteristics of early repolarization ... hallmark of early repolarization ... of ST segment elevation ... EKG #ECG #Early #Repolarization
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
of ST Segment Elevation ... Syndromes • Early Repolarization ... : - Early-repolarization ... ST Secondary Repolarization ... blocking drugs #STElevation