Antiarrhythmics - Class 1

Question 1

how many classes of antiarrhythmics are there

Answer 1

4 classes

Question 2

which classes of antiarrhythmics is not used in vet med

Answer 2

class 3

And

Sub class 1C

Question 3

what class of antiarrhythmics are Beta Blockers

Answer 3

Class 2

Question 4

what class of antiarrhythmics are Calcium Channel Blockers

Answer 4

Class 4

Question 5

mechanism of action for Class 1A antiarrhythmic drugs:

d_______ m_______ a________
p______ the r_______ p_______
d_________ a_________
i________ c_______ t_______

Answer 5

depress myocardial activity
prolong the refractory period
decrease automaticity
Increase conduction time

Question 6

indications for quinidine class 1A antiarrhythmic drugs

v_______ a________
a________ f________

Answer 6

ventricular arrhythmias
atrial fibrillation

Question 7

indications for procainamide class 1A antiarrhythmic drugs

p_______ v________ c________
v________ t________
a________ t________

Answer 7

premature ventricular contractions
ventricular tachycardia
atrial tachycardia

Question 8

Answer 8

premature ventricular contractions

Question 9

Answer 9

ventricular tachycardia

Question 10

Answer 10

atrial fibrillation

Question 11

four adverse effects of class 1A antiarrhythmic drugs

a________
v________
d_______
w_______

Answer 11

anorexia
vomiting
diarrhea
weakness

Question 12

what adverse effect can quinidine specifically cause

Answer 12

laminitis in horses

Question 13

what should not be done to sustained release formulas of quinidine

Answer 13

do not crush

Question 14

what do class 1B antiarrhythmics stabilize

Answer 14

myocardial cell membranes

Question 15

class 1B antiarrhythmics block ______ influx and decrease cell ______

Answer 15

sodium
automaticity

Question 16

class 1B antiarrhythmics are used to treat _______ arrhythmias

Answer 16

ventricular

Question 17

which class 1B antiarrhythmic is given via IV

Answer 17

lidocaine

Question 18

two indications for class 1B antiarrhythimics

Answer 18

PVCs
Ventricular tachycardia

Question 19

what species is especially sensitive to class 1B antiarrhythmics

Answer 19

cats

Question 20

do not use lidocaine-______ preparations for class 1B antiarrhythmics

Answer 20

epinephrine