317 results
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Arrhythmias • SA ... escape rhythm, Conduction ... His-purkinje system: Conduction ... > 100 bpm) • SA ... Differential #Diagnosis #Causes
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Pathophysiology Conduction ... pathways through SA ... diagnosis #cardiology #conduction
Cardiac conducting system 
 - Sinoatrial (SA) node normally generates the action potential, i.e. the electrical
Cardiac conducting ... - Sinoatrial (SA ... - The SA node ... Cardiac #Heart #Conduction
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Sinus Syndrome • SA ... with Variable AV Conduction ... rhythm SVT with conduction ... rhythm SVT with conduction ... Diagnosis #Algorithm #causes
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Differential Diagnosis Table ... HyperK vs VT > SVT+conduction ... whether AF is cause ... PMVT vs AFib + conduction ... Differential #Diagnosis #Table
Comparison Table of Induction Agents in Anesthesiology
 - Sodium thiopental 
 - Propofol 
 - Etomidate
Comparison Table ... of Induction Agents ... MarkHarrisMD #Induction ... Anesthesia #Comparison #Table
Thyroid Function Test Interpretation Table

TSH, Free T4, Free T3 and Associated Condition
#Diagnosis #Endocrinology #Hyperthyroid #Hypothyroid #Function
Interpretation Table ... and Associated Condition ... TFTs #Comparison #Table
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
provide the earliest clues ... repolarization causes ... L, decrease in conduction ... causes prolonged ... #Progression #Table
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
tachy not from SA ... /brady) (3) SA ... escaped beats (4) SA ... 200ms from longer pause
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
reduce speed of ion conduction ... current) causing ↓SA ... to ↑ ERP (slow conduction ... Classification #Classes