Cardiovascular I Flashcards
tx essential HTN
thiazide
ACE I
ARBs
DHP CCBs
tx HTN with heart failure
diureti ACE I ARBs CCB aldosterone antagonist beta-agonist
beta-blocker in heart failure
use with caution decompensated HF
CI in cardiogenic shock
protective against diabetic nephropathy
ACE I
ARBs
tx HTN in pregnancy
hydalazine
labetalol
methyldopa
nifedipine
amlodipine
DHP Ca channel blocker
clevidipine
DHP Ca channel blocker
nicardipine
DHP Ca channel blocker
nifedipine
DHP Ca channel blocker
nimodipine
DHP Ca channel blocker
diltiazem
nonDHP Ca channel blocker
verapamil
nonDHP Ca channel blocker
DHP vs. non-DHP
DHP - act on vasc smooth m
non-DHP - act on heart
CCB mechanism
block voltage dependent L-type Ca channels cardiac and smooth muscle
decreased muscle contractility
heart - non-DHP
vasc smooth m - DHP
tx subarachnoid bleed
nimodipine
prevent cerebral vasospasm
tx atrial fib/flutter
non-DHP CCB
adverse nonDHP CCB
AV block
adverse CCB
cardiac depression peripheral edema flushing dizzy constipation gingival hyperplasia
hyperPRL
seen with verapamil - adverse effect
hydralazine MOA
increase cGMP
- smooth m relaxation
- vasodilate arteriole > veins
- decrease afterload
hydralazine adverse
compensatory tachy fluid retention HA angina lupus like syndrome
nitroprusside MOA
short acting
incraese cGMP - via direct release NO
adverse nitroprusside
CN toxicity
-releases cyanide
fenoldopam MOA
dopamine D1 agonist
coronary, peripheral, renal, splanchnic vasodilation
decreased BP
increased natriureis
tx HTN emergency
clevidipine fenoldopam labetalol nicardipine nitroprusside
nitrates MOA
increased NO vasc smooth m
increase cGMP
smooth m relaxation
dilate vein > arteries
decreased preload
nitroglycerin
nitrate
isosorbide dinitrite
nitrate
isosorbide mononitrite
nitrate
adverse nitrates
reflex tachy (tx with beta-blockers)
hypotension
flushing
HA
monday disease
tolerance for vasodilator during week
-loss of tolerance on weekend
with nitrate use
tachy, dizzy, HA upon reexposure
determinants of myocardial O2 consumption
end-diastolic volume
BP
HR
contractility
target of antianginal therapy
pindolol and acebutolol
CI in angina
partial beta-agonists
antiangina tx
nitrates
beta blockers
combo nitrates/beta blockers
statin MOA
HMG CoA reductase inhibitors
effect of statins
greatly decreased LDL**
increased HDL and decreased TG
adverse statins
hepatotoxic
myoapthy
bile acid resin MOA
prevent intestinal reabsorption of bile acids
liver must use cholesterol to make more
adverse bile acid resins
GI upset
decreased absorption other drugs
decreased absorption fat soluble vits
cholestyramine
bile acid resin
colestipol
bile acid resin
colesevelam
bile acid resin
effect of bile acid resin
larger decrease LDL
ezetimibe MOA
prevent cholesterol absorption small intestine brush border
effect of ezetimibe
decreased LDL
adverse ezetimibe
diarrhea
increased liver function tests
gemfibrozil
fibrate
colfibrate
fibrate
bezafibrate
fibrate
fenofibrate
fibrate
fibrate MOA
upregulated LPL - increased TG clearance
activate PPAR-a - induce HDL synthesis
adverse fibrates
myopathy
cholesterol gallstones
effects of fibrates
greatly decreased TGs
niacin MOA
vit B3
inhibit lipolysis
reduced hepatic VLDL synthesis
adverse niacin
red, flushed face
decreased by NSAIDs
hyperglycemia
hyperuricemia
effects of niacin
increased HDL
decreased LDL
also slight decrease TG