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89 Cards in this Set

  • Front
  • Back
if you have LV dysfunction what should you be on
ACE inhibitor or ARB
what increases renin release?(4)
reduced arterial pressure
decreased sodium delivery to the cortex
increased sodium at the distal tubule
stimulation of sypathetic
what does renin do in RAAS?
cleaves angiotensinogen and releases angiotensin I
what does ACE do in RAAS
converts angiotensin I to andgiotensin II
what goes angiotensin II do
vasoconstricts and causes sodium retention by releasing aldosterone
ACE inhibitors do what?
cause vasodilation and induce natriuresis which reduces preload
captopril, enalapril, fosinopril, lisinopril, quinapril, benazepril, moexipril, perindopril, ramipril, trandolapril
ACE inihibtors
losartan, valsartan, irbesartan, candesartan, telmisartan, eprosartan, olmesartan
ARBS!
used for CHF, reducing risk of recurrent post MI, hypertension
ACE inhibitors or ARBS
diabetic patients should be on
enalapril
adverse effects include blood dyscrasias, aplastic anemia, drug cough, andioedema, hypotension and hyperkalemia
ACE inhibitors
dizziness and hyperkalemia
advsere effects of ARB
if your pt gets angioedema switch to
ARB
angioedema is cause by
increased bradykinins because ACE is blocked
aliskiren
renin inhibtor
cadiac glycosides are used in pts with
arrythmias and CHF
digoxin and digitoxin, digitalis
cadiac glycosides
how do cardiac glycosides work
cardiac glycosides inhibit Na/K-ATPase= increased Na which reduces the normal exchange of intracellular Ca for extracellular Na= greater release of Ca= positive ionitropic effect
cardiac glycosides do what to heart
increase stroke volume and enhance cardiac output, end-diastolic volume decrease and improves circulation
what do cardiac glycosides do to vagal tone
increase vagal activity
dosing of digoxin is
individualized
for acute digoxin toxicity what do you give
digoxin immune FAB- digibind
inamirnone lactate and milrinone
PDE 3 inhibitors in caridiac and increase cAMP= more Ca for better contractions
inamirnone lactate and milrinone
PDE 3 inhibitors in caridiac and increase cAMP= more Ca for better contractions
if you dont respond to digitalis what do you give?
inamrinone lactate or milrinone
dobutamine can be used for
short term therapy of seevr chronic cardiac failure and support after MI or surgery
nesiritide- MOA
increases cGMP and produces vasodilation, inccreases stroke volume
nitroprusside, nitroglycerin
vasodilators
for severe, decompensated CHF use
vasodilators
isosorbide, hydralazine, prazosin, carevdilol
long term therapy vasodilators
class I drugs MOA
block Na channels and reduce phase 0 depolarization
class 1A do what to heart
prolong refractory period and slow conduction
class 1B do what to heart
shorten duration of refratory period
class 1 C does what to heart
slows conduction
quinidine, procainamide, disoyramide
class IA- suppresses ventricular arrythmias
lidocaine, mexiletine
class 1B- suppresses ventrciular arrythmias
flecanide
class 1C- treat severe ventricular arrythmias
propanolol, atenolol nadolol
class II- suppress some ventricular arrythmias and inhibit AV node
amiodarone
class III- suppresses ventricular arrythmias
verapamil
class IV- treats reenterant supraventrciular tachycardia, suppress AV node conduction
adenosin
class V- treat paroxysmal atrial tachycardia
atropine used for
increase heart rate in bradycardia and heart blocks
digoxin uses
inhibit AV node and treat A fib
class IA- quinidine uses
supraventricular and ventricular arrythmias, used to maintain sinus rhythm after conversion of A fib or A flutter
causes cinchonism- ringing of ears and dizzines
quinindine- class 1A
procainamide-class IA
safer, fewer effects then quinidine-causes lupus like syndrome!!
lidocaine-
class IB- ventricular arrythmiasa second choice,
mexiletene
class 1B- used for long term ventricular arrythmias
flecanide and encainide
class 1C-ventricular tachyarrythmia and for paroxysmal A fib/ a flutter.
propafenone
1C- supraventricular arrythmias and life threatening ventrciular arrythmias
class II
B Blockers, inhibit phase IV, prolong AV conduction, treat A fib, A flutter
amiodarone
class III- like thyroxine, increases refractoriness and depresses sinus node, for atrial/ ventricular arrythmias
pulmonary fibrosis, gray man syndrome, photosensitivity, corneal microdeposits, thyroid disorders
adverse effects of amiodorone
ibutilide
class III- conversion of A fib/ A flutter, blocks inward Na channels
sotalol
class III- works as B blocker too, atrial or life threatening ventricular arrythmias
dofetilide-
class III- conversion in A fib or A flutter- inhibits K channels
bretylium
class III- inhibits catecholamines for severes refractory ventricular tachyarrythmias and ventrciular fibrillation
L type-Ca channel blockers
class IV- for supraventricular tachycadia and A flutter and A fib, negative iotropic effect - dont use in WPW
adenosine
class V- increases K and decreases Ca for paroxysmal superventricular tachycardia and WPW
atropine
blocks Ach and elevates HR at SA and AVfor bradyarrythmias
classic angina
due to diminished coronary flow when oxygen demand increases ( exercise)
vasospastic- prinzmentals angina
coronary vasospasm that decreases O2 supply and occurs at rest
nitrates/nitrites MOA
activates guynylate cyclase and increase cGMP to relax contractions and dilate all vessels
nitroglycerin used for with angina
unstable and prinzmetals
angina drugs-
nitrates/nitrites, B blockers, ca channel blockerss, dipyridamole
nifedipine effects on heart
less than verapamil and diltiazem
dipyridamole used for?
angia pectoris because its PGI2
give K sparing diuretics with what heart medication?
cardiac glycosides- to prevent potassium depletion
reduced peripheral vascular resistance, decreases sympathetics, decreases renin release..which drug
propanolol and beta blockers
what happens if you abruptly stop B blockers when taking it for angina
worsens angina and increases risk of MI
prazosin, terazosin, doxazosin
a blockers
phentolamine and phenoxybenzamine
block alpha 1 and alpha 2 receptors fror phenochromocytoma in hypertension
labetolol
blocks alpha and Beta
labetolol use
for hypertensive emergencies and hypertension of pheochromocytoma
nifedipine, nicardipine, nisoldipine, isradipine, amlodipine, felodipine
dihydropyridines -ca channel blockers- which dont effect heart and could cause reflex tachy. when combine with B blockers lower blood pressure even more then separately
methyldopa
blocks alpha 1 and alpha 2 and decreases peripheral resistance
clonidine
alpha 2 agonist whch reduces peripheral resistance
guanabenz acetate
activates alpha 2 and decreases sympathetics- lower BP
reserpine
elimiinates NE = lower BP; contraindicated in those with depression
hydralazine, minoxidil, sodium nirtoprusside, diazoxide
vasodilators
hydralazine and minoxidil work on what vessels
artery
nitroprusside works on what vessels
arteries more than veins
ambrisentan and bosentan MOA
ambrisentan works as a selective endothelin A receptor antagonist for pulmonary hypertension

bosentan antagonizes endothelin A and B receptors to reduce pulmonary hypertension
sildenafil, tadalafil, vardenafil
vasodilators to treat erectile dysfnction by inhibiting PDE 5
statins inhibit
HMG co A reductase
myositis, rhabdmyolysis, hepatotoxicity and elevations in aminotransferases
statin adverse effects
nicotinic acid lowers
cholesterol and triglycerides. reduces VLSL, IDL and LDL, HDL increases
fenofibrate, gemfibrozil
increases VLDL and chylomicrons, reduced triglycerides
a flutter, given quinidine and has sporadic arrythmias so what will you add?
digitalis