369 results
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Phase I - Initial Repolarization ... prolong AV node repolarization ... interval (delays time repolarization ... prolong AV node repolarization ... Classification #Classes
Temporary / External Pacing
 • Transvenous & epicardial pacing are temporary methods of supporting brady- &
Temporary / External Pacing ... Transvenous & epicardial pacing ... External cardiac pacing ... required to trigger depolarization ... to identify a depolarization
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 ... STEMI #Comparison #Table
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
and magnitude of depolarization ... prolong AV node repolarization ... interval (delays time repolarization ... prolong AV node repolarization ... Classification #Classes
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens repolarization ... 6.0 mEq/L, rapid repolarization ... causes peaked T ... in conduction causes ... #Progression #Table
Deep T Wave Inversions - Differential
Normal variants 
  A. Juvenile T wave pattern
Early repolarization ... or ventricular pacing ... Differential #Diagnosis #Causes
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... • Ventricular Pacing ... : - Pacing spike ... Right ventricle pacing ... voltage Other Causes
Most Common Breast Masses - Comparison between Fibroadenoma, Cysts and Cancer

#Diagnosis #Oncology #Breast #Masses #Comparison #Table
Common Breast Masses ... Oncology #Breast #Masses ... #Comparison #Table ... Examination and History Taking
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial ... Algorithm Forehead Sparing ... = Central cause ... Diagnosis #Algorithm #Causes ... #neurology #sparing
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Blockade • Slows depolarization ... Blockade • Slows depolarization ... Blockade • Slows depolarization ... Classification #Classes