Nate Shared "Pharm E2 (Antiarrhythmic)" - 14 Picmonics
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Pharm E2 (Antiarrhythmic)
Parts of an ECG
- PQRST
- P Wave
- Atrial Depolarization
- QRS Complex
- Ventricular Depolarization
- T Wave
- Ventricular Repolarization
2 mins
ECG Interpretation
- Rate
- Rhythm
- P Waves
- Upright, Rounded, Before Every QRS
- PR Interval (< 0.20 seconds)
- Normal QRS (< 0.12 seconds)
2 mins
ECG: Atrial Flutter
- Rate
- Variable
- Rhythm
- Regular or Irregular
- P Wave
- Saw Tooth, Multiple Before Every QRS
- PR Interval
- Non-measurable
- QRS Interval
- < 0.12 seconds
2 mins
ECG: Atrial Fibrillation
- Rate
- Variable Rate
- Rhythm
- Irregular Rhythm
- P Wave
- No P Wave
- PR Interval
- No PR Interval
- QRS Interval
- QRS < 0.12 Seconds
1 min
ECG: Sinus Bradycardia
- Rate
- < 60 bpm
- Rhythm
- Regular
- P Wave
- Present, Upright, Every QRS
- PR Interval
- < 0.20 seconds
- QRS Interval
- < 0.12 seconds
- Treatment
- Atropine
1 min
ECG: Sinus Tachycardia
- Rate
- > 100 bpm
- Rhythm
- Regular
- P Wave
- Present, Upright, Every QRS
- PR Interval
- < 0.20 seconds
- QRS Interval
- < 0.12 seconds
- Treatment
- Treat Underlying Cause
2 mins
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
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
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
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
56 secs
Class III Antiarrhythmics (K+ Channel Blockers)
- Indications
- Arrhythmias
- Mechanism of Action
- Increase AP Duration, ERP, and QT Interval
- Drug Names
- Amiodarone
- Check Function Tests
- Dirty Drug
- Ibutilide
- Dofetilide
- Sotalol
- Beta-Blocker
2 mins
Class IV Antiarrhythmics (Ca2+ Channel Blockers)
- Indications
- SVT
- Subarachnoid Hemorrhage
- Mechanism of Action
- Decrease Conduction Velocity
- Increase PR Interval and ERP
- Drugs
- Verapamil
- Diltiazem
- Nimodipine
- Side Effects
- Cardiovascular
- Constipation
2 mins
Adenosine (Adenocard)
- Mechanism
- Slows AV Conduction
- Indications
- Supraventricular Tachycardia (Paroxysmal)
- Side Effects
- Bradycardia
- Flushing
- Dyspnea
- Considerations
- Rapid IV Push
- Caffeine and Theophylline Decrease Effectiveness
- Dipyridamole May Intensify Effects
2 mins
Digoxin Mechanism and Indication
- Direct inhibition of Na K ATPase
- Indirect inhibition of Na Ca exchanger
- Increase Ca in cell
- Positive Inotropy
- CHF
- Stimulates Vagus Nerve
- Decreased conduction at AV node
- Atrial Fibrillation
1 min
