41 results
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Differential Diagnosis Algorithm ... cells: Insulin, Beta-Agonist ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #low #pathophysiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
2 - Beta Blockers ... of phase 4 to slow ... 3 - Potassium Channel ... alpha & beta adrenergic ... #pathophysiology
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Differential Diagnosis Algorithm ... Alkalosis • ↑ beta ... vomiting) • Low ... #nephrology #low ... #potassium
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
that Impair Renal Potassium ... Release: NSAIDs, Beta-Blockers ... #Hyperkalemia #Pathophysiology ... Pharmacology #Impaired #Potassium
Bradycardia Diagnostic and Management Algorithm

CONSIDER ETIOLOGY (not inclusive): 
 - STRUCTURAL: sick sinus, AV block, ischemia,
and Management Algorithm ... Hypothyroidism - TOX: beta-blockers ... LIFE THREATENING CAUSES ... TREATMENT - Drugs (beta-blockers ... #Bradycardia #Algorithm
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Sodium Channel Blockers ... are beta blockers ... - Potassium Channel ... Blockers Class ... Calcium Channels Blockers
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
open leading to slow ... 2 - Beta Blockers ... 3 - Potassium Channel ... alpha & beta adrenergic ... #pathophysiology
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
inhibition (NSAIDs, Beta-Blockers ... Angiotensin II Receptor Blockers ... Sodium-channel blockers ... differential #diagnosis #pathophysiology ... #pharmacology #potassium
Angiotensin Receptor Blockers 
Recommended Dose Conversions 

Valsartan 
Irbesartan 
Losartan 
Olmesartan 
Telmisartan 
Candesartan 
Azilsartan 
Eprosartan 

A few
Angiotensin Receptor Blockers ... another drug in that class ... recalls, this drug class ... for increased potassium ... Angiotensin #Receptor #Blockers
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
inhibitors Other causes ... Ketoconazole Low ... - NSAlDs - Beta-Blockers ... #Hyperkalemia #Algorithm ... #differential #causes