15 results
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... and prolongs PR interval ... • Prolongs QT interval ... and prolongs PR interval ... #Classes #cardiology
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Differential Diagnosis Algorithm ... Frameworks for Internal ... Differential #Diagnosis #Algorithm ... #Causes #Classification
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
(constant R-R Interval ... (variable R-R interval ... (constant R-R Interval ... (variable R-R interval ... #causes
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypomagnesemia Internal ... Low #Potassium #Table ... #Classification ... #Causes
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
depolarization • ↑ PR interval ... Duration) - ↑ QT interval ... velocity) - ↑ PR interval ... #Classes #pathophysiology ... #cardiology
Torsades de Pointes (TdP): Pathogenesis and Clinical Findings

Polymorphic ventricular tachycardia initiated by PVC in the setting
setting of QT interval ... TdP #Diagnosis #pathophysiology ... #cardiology #causes
Shock Classification Types - Pathophysiology Comparison

Obstructive Shock:
 • Obstructive shock is characterized by a blockage in
Shock Classification ... Types - Pathophysiology ... in blood flow caused ... Depends on the cause ... characterized by internal
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... Differential Diagnosis Algorithm ... Frameworks for Internal ... Differential #Diagnosis #Algorithm ... #Causes #cardiology
Causes of Pericarditis - Differential Diagnosis Algorithm
Viral:
 • Coxsackie
 • Echovirus
 • Adenovirus
 • Epstein-Barr virus
Causes of Pericarditis ... Differential Diagnosis Algorithm ... Frameworks for Internal ... Differential #Diagnosis #Algorithm ... #Causes #Cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
depolarization • ↑ PR interval ... Duration) - ↑ QT interval ... velocity) - ↑ PR interval ... #Classes #pathophysiology ... #phases #cardiology