A cоnsciоus аdult pаtient with аtrial fibrillatiоn is being prepared for synchronous cardioversion. Which of the following should be recommended? I.Administer midazolam (Versed) before starting. II.Administer flumazenil (Romazicon) before starting. III.Charge the defibrillator to 100 J. IV.Charge the defibrillator to 360 J. V.Set the ECG machine to lead II. VI.Have a manual resuscitator on standby.