antiarythmatic Flashcards
what is used in patients with ischemia & ventricular tachycardia where there is a scar caused by previous MI?
Lidocaina> IV> to treat
Mexelitine> oral> given after wards as long term medication
what do u monitor for when giving amiodirone?
may need to reduce doseof digoxin, and monitor warfarin
what do we also use it for diagnosing ischemia?
Adenosine
u slow the heart down > and as the drug washes off, there is a reactive tachycardia, and we want to compare the perfusion if tchycardia and slow beart beant to diagnose if there is an ischemia
which drug can be used in ventricular ectopic beats, as long as there is no structural heart disease? why?
Flecainide> class 1C
bc it is proarryhtmatic, it can cause proaryhtmatic ventricular tachyarrthmia & sudden death
what to warn th epatient before taking ivabridine?
flashing lights,
which drug to we use to convert re-entrant SV arryhtmias? how does it do that?
ADENOSINE
if u stop AV node from working temporarally, u can stop rythems that r re-ntering through the AV node and terminate them with this drug.
thats how we use it as a treatment in converting
treats bradycardia?
atropine
Muscurainc antagonist
why dont we use b blockers if there is an acute heart block or HF?
bc effects vasculature as well >> hypotension
which drug is best used POST MI?
1B> Best post MI
why should flecanide not be used alone in ATRIAL FLUTTER?
say in atrial flutter, the flutter is traveling around the atrium in a normal fashion at 340pbm, if i give them flecainide, and slow conduction at the tissue, i can then reduce the rate of the atrial flutter to 240 bpm, if that patient’s av node is very good, that 240 beats can make the ventricles go 240 betas!
so in atrial flutter we use FLecanide in combo with drugs that block AV node!
so the flutter cannot conduct to the ventricles
what is NOT used in atrial arrthmias?
class 1B
which drug has many many SE?
amiodirone?
when giving beta blockers and worried about SE, which type do we give?
Metoprolol
shorter acting!
we give in 2 or 3x a day
what r the most efficacious?
Amidorione and sotalol
what b blocker is given IV in emergency? half life?
esmolol
t1/2 9 mins