671 results
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 ... 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
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial ... Differential Diagnosis Algorithm ... Forehead Sparing ... Differential #Diagnosis #Algorithm ... #sparing
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
Deep T Wave Inversions - Differential
Normal variants 
  A. Juvenile T wave pattern
Early repolarization ... or ventricular pacing ... Differential #Diagnosis #Causes
Intrapartum Abnormal Fetal HR Tracing - Causes of Bradycardia and Tachycardia - Differential Diagnosis Algorithm
Abnormal Variability:
Abnormal Fetal HR Tracing ... - Causes of Bradycardia ... Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #Causes #Obstetrics
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
Causes of Nausea and Vomiting - Differential Algorithm #Diagnosis #EM #IM #Causes #Nausea #Vomiting #Differential #NonGI
Causes of Nausea ... - Differential Algorithm ... Diagnosis #EM #IM #Causes ... #Nausea #Vomiting ... Differential #NonGI #Algorithm
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens repolarization ... provide the earliest clues ... 6.0 mEq/L, rapid repolarization ... causes peaked T ... in conduction causes
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