24 results
Bradycardia Diagnostic and Management Algorithm

CONSIDER ETIOLOGY (not inclusive): 
 - STRUCTURAL: sick sinus, AV block, ischemia,
and Management Algorithm ... sick sinus, AV block ... Hypothyroidism - TOX: beta-blockers ... 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 # ... Diagnosis #Classification
Syncope - Differential Diagnosis Framework
Reflex Syncope:
• Vasovagal: Prolonged standing, Stress, Pain
• Situational: Coughing, Sneezing, Micturition, Defecation,
Syncope - Differential ... Framework Reflex Syncope ... Medication Effect: a-blockers ... Sinus pauses, AV block ... #Differential #
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... : • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Summary of Heart Blocks ... 1st Degree Heart Block ... Mobitz I Heart Block ... • Block in AV ... HeartBlocks #Types #Classification
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 ... Others Non-syncopal ... #differential #
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
: • MOA: Block ... duration CLASS 2 - Beta ... : • MOA: Block ... primarily) and block ... : • MOA: Block
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... /3rd degree AV Block ... #Cardiology #Differential ... #Diagnosis #Algorithm
Supraventricular Tachycardia (SVT) - Differential Diagnosis Framework and Management

Regular SVT: Sinus Tachycardia, AVNRT, AVRT, Atrial Flutter,
Tachycardia (SVT) - Differential ... AFIb w/ variable block ... Normotensive: Beta-Blocker ... Tachycardia #SVT #Differential
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
Approach to ECGs - Syncope ... assoc with 1K, AV block ... Trifascicular block ... 1st degree heart block ... electrocardiogram #differential