16 results
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 ... Summary #Table #pharmacology
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
inhibition (NSAIDs, Beta-Blockers ... Sodium-channel blockers ... #hyperkalemia #differential ... pathophysiology #pharmacology ... #potassium #medications
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
: • MOA: Block ... 2 - Beta Blockers ... 3 - Potassium Channel ... alpha & beta adrenergic ... Vaughan #Williams #Pharmacology
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 ... Table #Dosing #Pharmacology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... 2 - Beta Blockers ... 3 - Potassium Channel ... alpha & beta adrenergic ... Antiarrhythmics #Pharmacology
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
sodium channel blockers ... - Amantadine Beta ... widening #ECG #EKG #Pharmacology ... Toxicology #Diagnosis #Differential ... #Drugs #Classes
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... • Recent IV potassium ... • Beta blockers ... cell membrane - Beta ... #potassium #high
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... • Recent IV potassium ... • Beta blockers ... cell membrane - Beta ... #potassium #high
Here’s a review of the Renin-Angiotensin-Aldosterone system (RAAS)

This is a very common pathway that clinicians should
here, but the main ... sodium, which causes ... inhibiting drug classes ... Antagonists), all block ... ReninAngiotensinAldosteroneSystem #RAAS #Pharmacology
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
Anterior neck pain ... Treatment: - Beta ... blocker - Thionamide ... Treatment: • Beta ... #diagnosis #differential