Antiarrhythmics Flashcards
1
Q
QT prolongating drugs
A
class III class 1b (minimal)
2
Q
QRS prolonging drugs
A
class 1c
3
Q
PR prolonging drugs
A
B-blockers
CCBs
digoxin
4
Q
quinidine
procainamide
A
Ia
5
Q
lidocaine
mexiletine
A
Ib
6
Q
flecainide
propafenone
A
Ic
7
Q
amiodarone
sotalol
dofetilide
ibutilide
A
III
8
Q
class II anti-arrythmics
A
beta-blockers
9
Q
class IV
A
Ca-chan blockers
10
Q
verapamil
diltiazem
A
IV
11
Q
important to monitor EKG when administering
A
class III anti arrhythmics –> monitor QT
(K+ block –> prolonged QT –> torsades –> cardiac arrest)
also class Ia
12
Q
class IA
A
block Na, some K
(prolong QRS, QT, AP, ERP)
use: atrial arrhythmia (w/ normal heart structure)
AE: TDP
use-dependence (open/inactive Na chan)
- quinidine
- procainamide
