Ace Your First Aid for the USMLE Step 1 (2021) Classes and Exams with Picmonic: #1 Visual Mnemonic Study Tool for Physician Assistant (PA) Students

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing. Whether you're studying for your classes or getting ready for a big exam, we're here to help.

First Aid for the USMLE Step 1 (2021) | Physician Assistant (PA) School Study Aid


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Class I Antiarrhythmics (Na+ Channel Blockers) Overview
Indications
Arrhythmias
Local Anesthesia
Mechanism of Action
Block or Slow Conduction
Block Na+ Channels
Raise Threshold
State Dependent
Contraindication
Hyperkalemia
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1 min
Class IA Antiarrhythmics (Na+ Channel Blockers)
Indications
Arrhythmias
Mechanism of Action
Increase AP, ERP, and QT interval.
Drugs
Disopyramide
Procainamide
Drug-induced Lupus
Quinidine
Cinchonism
Shared Side Effects
Thrombocytopenia
Torsades de Pointes
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1 min
Class IB Antiarrhythmics (Na+ Channel Blockers)
Indications
Arrhythmias
After Myocardial Infarction
Mechanism of Action
Affect Ischemic Tissue
Decrease AP duration
Drugs
Mexiletine
GI Upset
Lidocaine
CNS Depression
Tocainide
Phenytoin
Hirsutism
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2 mins
Class IC Antiarrhythmics (Na+ Channel Blockers)
Indications
Used as Last Resort
V-Tach
Mechanism of Action
No Effect on AP Duration
Drugs
Propafenone
Flecainide
Contraindications
Post-Myocardial Infarction
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55 secs

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