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Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
agents - Sodium Channel ... agents - Calcium Channels ... Eric Strong @DrEricStrong ... - Strong Medicine ... Summary #Table #pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
1C: Strong Blockade ... receptors, and Ca ... MOA: Block slow Ca ... Ca++ influx into ... Vaughan #Williams #Pharmacology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... Classification: CLASS ... duration - CLASS ... 1C: Strong Blockade ... Antiarrhythmics #Pharmacology
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Ib, Ic) - Na+ Channel ... III - K+ Channel ... Eric Strong @DrEricStrong ... - Strong Medicine ... #cardiology #pharmacology
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Antiarrhythmics - Sodium Channel ... Eric Strong @DrEricStrong ... - Strong Medicine ... #Blockers #ClassI ... Na #cardiology #pharmacology
Causes of Stroke - Ischemic, Hemorrhagic, Subarachnoid - Differential Diagnosis Algorithm
 • Ischemic
 • Intracerebral Hemorrhage
Causes of Stroke ... - Differential Diagnosis ... Hemorrhage #Stroke ... #CVA #Neurology ... #Differential #Diagnosis

Posterior cerebral artery (PCA) strokes can be challenging to diagnose, due to the variability in symptoms,
cerebral artery (PCA) strokes ... challenging to diagnose ... incidence of PCA strokes ... and mild visual changes ... #PCAstroke #cva
How do you work up an ischemic CVA?
A) Initial Evaluation
 • ABCs
 • IV access, monitor
up an ischemic CVA ... sn/sp) or • CTA ... Ruled out other causes ... #stroke #workup ... #diagnosis #checklist
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... - Potassium Channel ... Eric Strong @DrEricStrong ... - Strong Medicine ... #Blockers #pharmacology
SGLT2 inhibitors, also called gliflozins, are a class of medications that alter essential physiology of the
gliflozins, are a class ... inhibitors that modulate ... sodium/glucose channels ... pharmaceutical class ... (Farxiga®) and empagliflozin