21 results
Calcium Channel Blockers - Dihydropyridines vs Non-Dihydropyridines
Dihydropyridines (amlodipine, felodipine, nifedipine, nicardipine)
 • SVR: Decrease
 • Inotropy:
SVR: Decrease • Inotropy ... SVR: Decrease • Inotropy ... NonDihydropyridines #pharmacology ... #comparison #table ... #cardiology
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Channel #Blockers #ClassI ... #Na #cardiology ... #pharmacology # ... table #comparison
Common Vasopressors and Inotropes
Norepinephrine (NE)
 - Indication: Distributive shock (1st line for septic shock), Cardiogenic shock
Vasopressors and Inotropes ... Bradyarrhythmias, Some cases ... #Vasopressors #Inotropes ... #comparison #table ... #pharmacology #
Clues to Differential Diagnosis of Central Cyanosis: Onset of cyanosis, Clubbing, Secondary erythrocytosis, Auscultation, X-ray, Echocardiography,
to Differential Diagnosis ... #Differential #Diagnosis ... #Central #Cardiology ... #Causes #Table ... #Comparison
Common Medications Known to Prolong QTc
Antiarrhythmics - Amiodarone, sotalol, flecainide, quinidine, dronedarone, dofetilide
Vasopressors/inotropes - Epinephrine, norepinephrine,
Vasopressors/inotropes ... #Medications #Causes ... #differential #diagnosis ... #pharmacology # ... table
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
contraction force (negative ... inotropy) ACCP ... Cardiology PRN ... Vaughan #Williams #Pharmacology ... pathophysiology #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... to maintain a negative ... contraction force (negative ... inotropy) ACCP ... Cardiology PRN
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
from positive to negative ... Originates from single focus ... interval Class ... TorsadesDePointes #Diagnosis ... #Cardiology #ECG
SCAI Pyramid of Cardiogenic Shock Classification
E - Extremis - A patient experiencing cardiac arrest with ongoing
C - Classic - A ... intervention (inotrope ... clinical evidence of relative ... Classification #ABCDEs #diagnosis ... #cardiology
Toxidromes Compared: Anticholinergic, Cholinergic, Opioid, Sympathomimetic, Sedative-Hypnotic

During your physical exam, look for evidence of some of
Sympathomimetic, Sedative-Hypnotic ... of some of the classic ... #Diagnosis #Toxicology ... #Toxidromes #Comparison ... #Table #Anticholinergics