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Cardiology

Step 2

QuestionAnswer
What EKG findings do you need to diagnose WPW? Tachyarhythmia PR<0.12 seconds Delta wave Wide complex QRS or Narrow Complex
What cardiac drugs should you avoid in a patient with WPW? Digoxin, B-blockers, Verapamil, Adenosine: they all work on the AV node and will not affect the accessory pathway and can make the tachyarrhythmia worse.
How do you medically treat WPW? Procainamide (Class Ia)-works on Na channels and will act on the bundle of kent and increases the refractory period helping to insulate and slow down the accessory path or -Amiodarone (Class3) IV for acute exacerbations, also oral for long term
Created by: bodex