170 results
Distinguishing Between Benign Early repolarization vs STEMI on EKG
#Diagnosis #Cardiology #ECG #EKG #Repolarization #STEMI #Comparison #Table
Between Benign Early repolarization ... vs STEMI on EKG ... Diagnosis #Cardiology #ECG ... #EKG #Repolarization ... STEMI #Comparison #Table
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Phase I - Initial Repolarization ... Delays ventricular repolarization ... - Ventricular Repolarization ... Vaughan Williams Classification ... #Pharmacology #Classification
Major electrocardiogram findings induced by left ventricular hypertrophy (LVH)
An increase in left ventricular mass augments the
alteration in repolarization ... in left atrial depolarization ... LeftVentricular #ECG ... #EKG #Diagnosis
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... prolong AV node repolarization ... interval (delays time repolarization ... prolong AV node repolarization ... #Pharmacology #Classification
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
• Slows depolarization ... in wide QRS on EKG ... involved in phase 3 repolarization ... • Prolongs repolarization ... prolonged QT on EKG
ECG characteristics of early repolarization
 - The ST segment elevations are concave and most pronounced in
ECG characteristics ... of early repolarization ... hallmark of early repolarization ... Diagnosis #Cardiology #EKG ... #ECG #Early #Repolarization
T Waves: Benign Early Repolarization vs Hyperacute T Waves vs Peaked T Waves 

BER = Notching
: Benign Early Repolarization ... symmetrically peaked #ECG ... #EKG #cardiology
EKG CHANGES AND TOXICITIES TO CONSIDER

#Diagnosis #Toxicology #EKG #ECG #Toxidromes #Toxicities #Changes #Table
EKG CHANGES AND ... Diagnosis #Toxicology #EKG ... #ECG #Toxidromes ... Toxicities #Changes #Table
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens repolarization ... 6.0 mEq/L, rapid repolarization ... #Hyperkalemia #EKG ... #ECG #Changes # ... Progression #Table
ECG Manifestations of Electrolyte Imbalance
#Diagnosis #ECG #EKG #Electrolyte #Imbalances #Abnormalities #Table #ALiEM
ECG Manifestations ... Imbalance #Diagnosis #ECG ... #EKG #Electrolyte ... Abnormalities #Table