This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ECG and Arrhythmias 1, Subject name: Medicine
Best management of a hemodynamically stable patient with ECG showing Broad QRS complex with antidromic tachycardia is? 
Select and explain. 
A. Oral Verapamil, B. Oral Beta-blocker, C. Cardioversion, D. Intravenous Procainamide
D: Intravenous Procainamide
Answer: D: Intravenous Procainamide 
Explanation: Option A: Verapamil can't be given in WPW syndrome, it will block the A-V Node & will be more conduction through Bundal of kent & it'll trigger Antidromic conduction. Option B: Beta Blocker = B not use in emergency. Even if will give iv B , it'll only control HR but it'll not control fast conduction which is occurring in bundle of kent. Option D: IV procainamide, it will reduce conduction speed of bundle of Kent. Option C: Cardioversion= we don't give cardioversion to hemodynamic stable person.