21 results
3 Minute EM Pearls: Beta-Blocker Poisoning

PeterboroughEM @PeterboroughEM

#Diagnosis #Management #Toxicology #BetaBlocker #Beta #Blocker #Poisoning
3 Minute EM Pearls ... : Beta-Blocker Poisoning ... #BetaBlocker #Beta ... #Blocker #Poisoning
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 ... #Bradycardia #Algorithm
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Sodium Channel Blockers ... this class are beta ... blockers.⠀ Class ... III agents - Potassium ... Channel Blockers
Management of acute beta blocker/calcium channel blocker overdose

#Management #Toxicology #BetaBlocker #CCB #CalciumChannelBlocker #Overdose #Toxicity #Algorithm
Management of acute beta ... blocker/calcium ... channel blocker ... Overdose #Toxicity #Algorithm
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 ... Pharmacology #Impaired #Potassium
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 ... #pharmacology #potassium
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Sodium Channel Blockers ... : • MOA: Block ... duration CLASS 2 - Beta ... repolarization CLASS 3 - Potassium ... alpha & beta adrenergic
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
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Differential Diagnosis Algorithm ... Alkalosis • ↑ beta ... Differential #Diagnosis #Algorithm ... nephrology #low #potassium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
• Recent IV potassium ... • Beta blockers ... cell membrane - Beta ... adrenergic receptor blockers ... diagnosis #causes #potassium