34 results
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Vaughan Williams Classification ... this class are beta ... blockers.⠀ Class ... III agents - Potassium ... #Medications #Classification
Bradycardia Diagnostic and Management Algorithm

CONSIDER ETIOLOGY (not inclusive): 
 - STRUCTURAL: sick sinus, AV block, ischemia,
and Management Algorithm ... Hypothyroidism - TOX: beta-blockers ... TREATMENT - Drugs (beta-blockers ... #Bradycardia #Algorithm ... #Differential
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... duration CLASS 2 - Beta ... repolarization CLASS 3 - Potassium ... alpha & beta adrenergic ... #Pharmacology #Classification
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 ... #hyperkalemia #differential ... #pharmacology #potassium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... phlebotomy High ... • Recent IV potassium ... • Beta blockers ... #high #nephrology
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic algorithm ... Normal, Renin High ... hypoplasia Aldosterone high ... Hyperkalemia #Diagnosis #algorithm ... #differential
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Hypokalemia - Differential ... Diagnosis Algorithm ... cells: Insulin, Beta-Agonist ... #Diagnosis #Algorithm ... #causes #potassium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... phlebotomy High ... • Recent IV potassium ... • Beta blockers ... #high #nephrology
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Diagnosis Algorithm ... Alkalosis • ↑ beta ... #Diagnosis #Algorithm ... nephrology #low #potassium
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
transplant - SLE High ... - NSAlDs - Beta-Blockers ... #Hyperkalemia #Algorithm ... #diagnosis #differential