4 results
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... Vaughan Williams Classification ... repolarization CLASS 3 - Potassium ... Antiarrhythmics #Pharmacology ... #Classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... repolarization CLASS 3 - Potassium ... • MOA: Block K+ ... Vaughan #Williams #Pharmacology ... #Classification
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
esp w oliguria / GFR ... Labs: BMP (Assess GFR ... VBG (acidosis), CK ... caution in HTN & edema ... Management #Treatment #potassium
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
130 mEq/L • Potassium ... trial • Minimal K ... • Increases Edema ... volume - increased edema ... NS #comparison #pharmacology