1
Q
PR prolonging drugs
A
B-blockers
CCBs
digoxin
2
Q
quinidine
procainamide
A
Ia
3
Q
lidocaine
mexiletine
A
Ib
4
Q
flecainide
propafenone
A
Ic
5
Q
amiodarone
sotalol
dofetilide
ibutilide
A
III
6
Q
class II anti-arrythmics
A
beta-blockers
7
Q
class IV
A
Ca-chan blockers
8
Q
verapamil
diltiazem
A
IV
9
Q
important to monitor EKG when administering
A
class III anti arrhythmics –> monitor QT
K+ block –> prolonged QT –> torsades –> cardiac arrest
