35 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
Action Potential: Depolarization and repolarization of a neuron

#ActionPotential #Depolarization #Repolarization #Neuron #Neurology #Pathophysiology
Action Potential: Depolarization ... and repolarization ... ActionPotential #Depolarization ... #Repolarization
Distinguishing Between Benign Early repolarization vs STEMI on EKG
#Diagnosis #Cardiology #ECG #EKG #Repolarization #STEMI #Comparison #Table
Between Benign Early repolarization ... Cardiology #ECG #EKG #Repolarization
ECG characteristics of early repolarization
 - The ST segment elevations are concave and most pronounced in
characteristics of early repolarization ... hallmark of early repolarization ... EKG #ECG #Early #Repolarization
Benign Early Repolarization (BER) on EKG
 • Widespread concave STE most prominent in mid-to-left precordium (V2-V5)
Benign Early Repolarization ... Benign #Early #Repolarization
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Blockade • Slows depolarization ... Blockade • Slows depolarization ... Blockade • Slows depolarization
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
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
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
Ice-pack Test for Myasthenia Gravis - Likelihood Ratio (LR) +24 / -0.16
Ice pack's can be used
increasing ACh for depolarization