160 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
- Ventricular Depolarization ... - Ventricular Repolarization ... • Atrial depolarization ... and magnitude of depolarization ... phase 4 to slow depolarization
Action Potential: Depolarization and repolarization of a neuron

#ActionPotential #Depolarization #Repolarization #Neuron #Neurology #Pathophysiology
Action Potential: Depolarization ... and repolarization ... ActionPotential #Depolarization ... #Repolarization
Causes of ST Elevation in ECG

#STElevation #STEMI #ECG #EKG #Electrocardiogram #Causes #Differential #ABCHELP #Mnemonic
Causes of ST Elevation ... in ECG #STElevation
Differential Diagnosis for ST Segment Elevations
 - ACUTE STEMI 
 - PULMONARY EMBOLISM 
 - LBBB
- BENIGN EARLY REPOLARIZATION ... #STSegment #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
ST Elevation MI Criteria 
#Diagnosis #Cardiology #ECG #EKG #STEMI #STElevationMI #Criteria #FOAMCast
ST Elevation MI ... ECG #EKG #STEMI #STElevationMI
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
Major electrocardiogram findings induced by left ventricular hypertrophy (LVH)
An increase in left ventricular mass augments the
alteration in repolarization ... in left atrial depolarization
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