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Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockersâ €
Class II
Class I agents ... â € Class II agents ... .â € Class III agents ... Class IV agents ... â € Class V agents
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Classification: CLASS ... duration: - CLASS ... duration - CLASS ... & AP duration CLASS ... #pathophysiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Classification: CLASS ... duration - CLASS ... duration - CLASS ... & AP duration CLASS ... #pathophysiology
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Sodium Channel Blockers ... Sodium #Channel #Blockers ... #ClassI #Na #cardiology ... #pharmacology #table
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 ... Angiotensin #Receptor #Blockers ... ARB #Conversion #Table
Clinically Significant Cardiovascular Drug-Drug Interactions With OTC Supplements and Herbal Products
Angiotensin-Converting Enzyme Inhibitors (ACEIs)
 • Night-blooming
hypertension Alpha-Blockers ... effects of alpha-blockers ... vera, Licorice - Causes ... potential arrhythmias Class ... pharmacology #DDI #table
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
functional status - Able ... metabolic equivalent able ... ASA class If ... event, follow ACC algorithm ... Stable patients
A graphical illustration of the antiviral mechanisms of Chloroquine (CQ) and hydroxychloroquine (HCQ). Both chemicals can
processing and MHC class ... or HCQ not only blocks ... HCQ #antiviral #pathophysiology