Cardiac Flashcards
Use for Primary HTN
thiazides
Ace inhibitors
Angiotensin receptor blockers
HTN with HF
diuretic, ace inhibitor, and arb (only use beta blockers in compensated HF)
HTN with DM
ace inhibitors and angiotensin receptor blockers
HTN in pregnancy
hydrazine, nifedipine, methyldopa, labetalol
Dihydropyridine calcium channel blockers work on?
vascular smooth muscle
Amlodipine, clevidipine, nifedipine, nimodipine
dihydropyridine calcium channel blockers
nondihydropyridine calcium channel blockers
work on the heart
dilitazem, verapamil
nondihydropyridine calcium channel blockers
-“dipine”=
Dihydropyridine calcium channel blockers
MOA of calcium channel blockers
block voltage gated L type calcium channels of cardiac and smooth muscle
(Class 4 will decrease conduction velocity and increase EP and increase PR interval)
Use all Dihydropyridines except nimodipine for:
HTN, angina, raynaud phenomenon
nimodipine used for
subarachnoid hemorrhage
nondihydropyridines used for
HTN, angina, a fib/flutter, and to prevent SVT
SE of dihydropyridines
cardiac depolarization, av block, hyperprolactinemia, constipation
SE of nondihydropyridines
peripheral edema, flushing, dizziness, gingival hyperplasia
Hydralazine works by:
increased cGMP; which works to vasodilator arterioles > veins ; decreases afterload
Hydralazine is used for HF when given with?
nitrate
Hydralazine avoids reflex tachycardia with?
beta blockers
SE: of hydralazine
SLE like symptoms, increase HR, and fluid retention
1 drug for HTN emergency =
nitroprusside
NItroprusside works by:
increase cGMP–> by releasing NO and can cause Cyanide toxicity
Nitrates examples:
nitroglycerin, isosorbide dinitrate, isosorbide mononitrate
MOA of nitrates:
dilate veins> arterioles; which decreases preload
**Will also see a decrease in EDV, BP, ejection time, and MVO2
Nitrates work on EDV and BP by:
decreases MVO2
Beta blockers work on contractility and BP by:
MVO2
Inhibits late phase of sodium current –> decreases diastolic wall tension and oxygen consumption
ranolazine
use for angina due to other therapies; that doesn’t affect the HR or contractility?
ranolazine