CV Drugs - Arrythmia

Question 1

main pacemaker of the heart

Answer 1

sinoatrial node

Question 2

p wave

Answer 2

atrial contraction

Question 3

qrs wave

Answer 3

ventricular contraction

Question 4

t wave

Answer 4

ventricular relaxation

Question 5

DOC for digoxin-induced arrhythmia

Answer 5

lidocaine, phenytoin

Question 6

DOC for supraventricular tachycardia (SVT)

Answer 6

adenosine

Question 7

DOC for ventricular tachycardia (VT)

Answer 7

amiodarone
alt: lidocaine/shock

Question 8

DOC for ventricular fibrillation (VF)

Answer 8

amiodarone
alt: shock

Question 9

DOC for chronic atrial fibrillation (rate control)

Answer 9

digoxin

Question 10

DOC for acute atrial fibrillation (rhythm control)

Answer 10

Class III, Ia, Ic

Question 11

quinidine

Answer 11

Class IA
Na channel blocker (Phase 0)

s/e: cinchonism

Question 12

procainamide

Answer 12

Class IA
Na channel blocker (Phase 0)

s/e:
lupus like effect (same as hydralazine & isoniazid)

Question 13

disopyramide

Answer 13

Class IA
Na channel blocker (Phase 0)

Question 14

phenytoin

Answer 14

Class IB
Na channel blocker (Phase 0)

Question 15

lidocaine

Answer 15

Class IB
Na channel blocker (Phase 0)

Question 16

mexiletine

Answer 16

Class IB
Na channel blocker (Phase 0)

Question 17

tocainide

Answer 17

Class IB
Na channel blocker (Phase 0)

Question 18

flecainide

Answer 18

Class IC
Na channel blocker (Phase 0)

Question 19

propafenone

Answer 19

Class IC
Na channel blocker (Phase 0)

Question 20

moricizine

Answer 20

Class IC
Na channel blocker (Phase 0)

Question 21

propranolol

Answer 21

Class II
beta blocker (damage control only)
dec HR

Question 22

esmolol

Answer 22

Class II
beta blocker (damage control only)
dec HR

Question 23

acebutalol

Answer 23

Class II
beta blocker (damage control only)
dec HR

Question 24

bretylium

Answer 24

Class III
K channel blocker (prolong refractory period)

Question 25

amiodarone

Answer 25

Class III K channel blocker (prolong refractory period) s/e: hepatotoxic, thyroid probs, corneal deposits

Question 26

sotalol

Answer 26

non selective Bblocker prolongs phase 3 action potential Class III K channel blocker (prolong refractory period)

Question 27

dofetilide

Answer 27

Class III K channel blocker (prolong refractory period)

Question 28

verapamil

Answer 28

Class IV Ca channel blocker (dec HR)

Question 29

diltiazem

Answer 29

Class IV Ca channel blocker (dec HR)

Question 30

restore rhythm

Answer 30

class I and III

Question 31

dec HR

Answer 31

class II and IV

Question 32

adenosine

Answer 32

slow down firing of SA node other drugs

Question 33

atropine

Answer 33

other drugs

Question 34

digoxin

Answer 34

other drugs

Question 35

magnesium sulfate

Answer 35

s/e: proarrhythmia other drugs

Question 36

DOC for sustained ventricular arrhythmia with acute MI

Answer 36

lidocaine