8 results
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Indications, Side Effects ... Channel #Blockers #ClassI ... #Na #cardiology ... #pharmacology #table ... #comparison
Calcium Channel Blockers - Dihydropyridines vs Non-Dihydropyridines
Dihydropyridines (amlodipine, felodipine, nifedipine, nicardipine)
 • SVR: Decrease
 • Inotropy:
• Inotropy: No effect ... Eric Strong @DrEricStrong ... - Strong Medicine ... #pharmacology #comparison ... #table #cardiology
Beta Blockers - Pharmacology Comparison Table
Metoprolol:
 • Receptors: β1
 • Indications: Rate control of a-fib/a-flutter, Suppression
- Pharmacology Comparison ... limited by side effects ... - Strong Medicine ... #Table #Receptors ... #cardiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... channel blocking effects ... 1C: Strong Blockade ... inotropy) ACCP Cardiology ... #cardiology
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Differential Diagnosis by Classification ... Medication side effect ... Medication side effect ... Eric Strong https ... #Table #Causes
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
- Genetic defects ... Eric Strong https ... Low #Magnesium #Table ... #Classification ... #Causes #Workup
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... channel blocking effects ... 1C: Strong Blockade ... inotropy) ACCP Cardiology ... #phases #cardiology
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
ASA class If ... event, follow ACC algorithm ... Stable patients ... one post op Cardiology ... • <6mo since stroke