wide complex

regular

VT or unknown WCT try adenosine

if no response then

amiodarone or procainamide or sotalol or lidocaine (if VT) & prepare for synch cardioversion

---

irregular

Afib w/ aberrancy

Control rate w/ diltiazem or metoprolol

AF + WPW

ibutilide or proc avoid adeno, BB, calcium channel blocker, dig

PMVI (nl QT)

• treat ischemia
• lidocaine or amio
• & prepare for defibrillation

Torsades (QT prolong)

• Torsade de point 視同 VF + MgSO4 or lidocaine
• Amiodarone 會 prolong QTc
• correct lytes & other precip.
• Mg 2gIV overdrive pacing or isoproterenol