80 results
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Classification: CLASS ... 1 - Sodium Channel ... Block fast Na+ channels ... 3 - Potassium Channel ... #pathophysiology
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
agents - Sodium Channel ... Blockers⠀ Class ... III agents - Potassium ... Channel Blockers ... - Calcium Channels
EKG CHANGES AS A RESULT OF CHANGES IN NA OR K CHANNEL CONDUCTION - GRAPHIC BY
EKG CHANGES AS A ... RESULT OF CHANGES ... IN NA OR K CHANNEL ... JAMES LI, MD #Pathophysiology ... #NaK #Sodium #Potassium
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Causes of Hypokalemia ... Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #low #pathophysiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Classification: CLASS ... duration - CLASS ... duration - CLASS ... 3 - Potassium Channel ... #pathophysiology
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
to the sodium-channel ... repolarizing eflux of potassium ... voltage-sensitive calcium channels ... Antiarrhythmics #Classes
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
that Impair Renal Potassium ... Decreased ENaC channel ... #Hyperkalemia #Pathophysiology ... Pharmacology #Impaired #Potassium
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
Causes of Hyperkalemia ... Differential Diagnosis Algorithm ... Excretion (IV potassium ... Differential #Diagnosis #Algorithm ... #Causes
Hyperkalemia Differential Diagnosis Algorithm
R/O Pseudo-hyperkalemia:
 • Possible Lab error! Alwavs Repeat Blood sample!
 • Leukocytosis, Thrombocytosis:
Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #high #pathophysiology
Pathophysiology Based Approach to Hyponatremia - Diagnostic Algorithm

Not the "classic" Volume based approach. 

#Hyponatremia #Algorithm #Pathophysiology
Pathophysiology ... Hyponatremia - Diagnostic Algorithm ... Not the "classic ... #Hyponatremia #Algorithm ... #Pathophysiology