18 results
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
: • MOA: Block ... 2 - Beta Blockers ... : • MOA: Block ... : • MOA: Block ... #Classes #pathophysiology
Bradycardia Diagnostic and Management Algorithm

CONSIDER ETIOLOGY (not inclusive): 
 - STRUCTURAL: sick sinus, AV block, ischemia,
sick sinus, AV block ... Hypothyroidism - TOX: beta-blockers ... LIFE THREATENING CAUSES ... TREATMENT - Drugs (beta-blockers ... #Differential
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Shock - Differential ... Diagnosis by Classification ... pauses • AV block ... #Differential # ... #Table #Causes
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
: • MOA: Block ... 2 - Beta Blockers ... : • MOA: Block ... : • MOA: Block ... #Classes #pathophysiology
Syncope - Differential Diagnosis
The percentage of syncopal events secondary to arrhythmias or structural disease is generally
Syncope - Differential ... percentage of syncopal ... Sick sinus, AV block ... #differential # ... diagnosis #causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... /3rd degree AV Block ... #Diagnosis #Algorithm ... #causes
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
- Differential ... Diagnosis Algorithm ... cells: Insulin, Beta-Agonist ... #Diagnosis #Algorithm ... #low #pathophysiology
Lymphadenopathy - Differential Diagnosis Algorithm
Localized: 
 • Cervical: EBV, CMV, HIV, Toxo, TB, Lymphoma, Head /
Lymphadenopathy - Differential ... Diagnosis Algorithm ... : Allopurinol, Beta-Blockers ... #Diagnosis #Algorithm ... #Causes
Causes of Syncope - Differential Diagnosis Algorithm
Cardiac - Arrhythmia:
 • Tachyarrhythmia
 • Bradyarrhythmia
 • Supraventricular Tachycardia
Causes of Syncope ... - Differential ... Diagnosis Algorithm ... Atrioventricular Block ... #Diagnosis #Algorithm
Bradycardia - Differential Diagnosis Framework

BRADI Mnemonic
 • BRASH/Hyperkalemia
 • Reduced oxygen/Glucose/Temp
 • ACS
 • Drugs
 •
Bradycardia - Differential ... surgery • Heart block ... Medications: • Beta ... channel blockers ... #Bradycardia #differential