arrhythmias

Question 1

nexterone

Answer 1

amiodarone (1/2)

Question 2

pacerone

Answer 2

amiodarone (2/2)

Question 3

half life of amiodarone

Answer 3

40-60 days

Question 4

amiodarone contraindications

Answer 4

iodine hypersensitivity

Question 5

amiodarone monitoring

Answer 5

pulmonary toxicity, hepatotoxicity

Question 6

amiodarone structure

Answer 6

contains two iodine molecules which explains ddi with thyroid meds and iodine sensitivity warning

Question 7

warnings of amiodstone

Answer 7

optic neuropathy, photosensitivity, neuropathy

Question 8

diltiazem contraindications

Answer 8

heart failure

Question 9

what class causes gingival hyperplasia

Answer 9

ccbs

Question 10

therapeutic range for digoxin

Answer 10

afib: 0.8 to 2
hf: 0.5 to 0.9

Question 11

digoxin antidote

Answer 11

digifab

Question 12

signs of dig tox

Answer 12

blurred vision, green yellow halos

Question 13

digoxin dose adjust

Answer 13

if crcl<50 or if switching from oral to iv lower dose by 20-25%

Question 14

disopyramide side effects

Answer 14

anticholinergic

Question 15

quinine administration

Answer 15

take with food

Question 16

which antiarrhythmics can cause dile

Answer 16

procainimide, quinine (coombs)

mostly class 1a

Question 17

procainimide dosing

Answer 17

4-10 mcg/ml

Question 18

leaching issues with pvc pneumonic

Answer 18

Leach - lorazepam 
Absorbs - Amiodarone 
To - Tacrolimus
Take - Taxares
In - Insulin
Nutrients - Nitroglycerin

Question 19

what form does lidocaine come in and what is that used for?

Answer 19

refractory vt/cardiac arrest

Question 20

what kind of beta blocker is sotalol

Answer 20

non selective

Question 21

when do you reduce frequency of sotalol dose?

Answer 21

when crcl<60

Question 22

what form does ibulitide come in

Answer 22

iv

Question 23

which antiarrhythmic needs continous monitoring?

Answer 23

dofetilide - continous ecg and crcl for a min of 3 days

Question 24

what is the half life of adenosine

Answer 24

10 seconds

Question 25

what is adenosine used in?

Answer 25

paroxysmal supraventricular tachycardia

Question 26

flecainide is contraindicated in what

Answer 26

heart failure, MI

Question 27

pneumonic for antiarrhythmic classification

Answer 27

1a) double quarter pounder
1b) lettuce, mayo,
1c) fries please.
2) because
3) dieting during stress is always
4) very difficult.

Question 28

key drugs that prolong qt intervals

Answer 28

• class i (esp 1a) and iii antiarrhythmics
• antibiotics - quinolones and macrolides
• antidepressants - TCAs, SSRI, SNRI
• antimetic drugs - 5-HT3 receptor antagonists, dropinerol/phenothiazines
• most antipsyxhotics
• other: tacrolimus, donepezil, fingolimod, methadone

Question 29

paroxysmal afib

Answer 29

terminates spontaneously or with intervention within 7 days of onset

Question 30

persistent

Answer 30

lasts longer than 7 days

Question 31

long standing persistent

Answer 31

lasts longer than 12 months

Question 32

permenant afib

Answer 32

treatment choicd to stop trying to restore nsr

Question 33

valvular

Answer 33

requires warfarin anticoagulation, afib with moderate to severe mitral stenosis

Question 34

goal hr for symptomatic afib

Answer 34

less than 80

Question 35

path of conduction

Answer 35

SA –> AV –> bundle of HIS –> purkinje fibers

Question 36

what happens in phase 0

Answer 36

rapid ventricular depoloarizaion due to na influx

class 1 works here

Question 37

what happens in phase 2 of ap

Answer 37

ca in, k out

Question 38

what happens in phase 3 of ap

Answer 38

k out

class 3 works here