Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
40 Cards in this Set
- Front
- Back
MOA of pFOXis
|
shift heart metabolism for energy from FAs to glu
|
|
ranolazine and trimetazidine are
|
pFOXis
|
|
reduce O2 requirement:
|
nitrates, Ca Ch blockers, B blockers
|
|
increase O2 delivery by reducing vasospasm
|
nitrates and CCBs
|
|
tx for unstable angina
|
angioplasty and anti-clotting meds
|
|
abciximab, eptifibatide and tirofiban are:
|
platelet glycoprotein IIb/IIIa inhibitors used for unstable angina
|
|
amyl nitrate, nitroglycerin, isosorbide dinitrate
|
nitrates
|
|
MOA of nitrates
|
dinitration in smooth muscle cells causes release of NO; stimulates guanylyl cyclase to increase cGMP - smooth muscle relaxation
|
|
effect of nitrates on CV system
|
venodilation, reduced CO and preload; relaxed arteries causes increased coronary flow, reduced afterload; reversal of spasm
|
|
compensatory effect of nitrates
|
reflex tachycardia and increased contraction force
|
|
nitrate effect on other organs (not CV)
|
relax smooth muscle, reduce platelet aggregation (IV form)
|
|
tolerance of nitrates develop after how long?
|
8-10 hr
|
|
combo of nitrates with what drug can cause increased hypotension and hypoperfusion of organs?
|
sildenafil and other ED drugs
|
|
MOA of ED drugs (sildenafil):
|
inhibit phosphodiesterase that metabolizes cGMP, increases amount of cGMP available which increases relaxation of erectile smooth muscle, this allows inflow of blood and erection
|
|
at high blood concentrations, what is an important nitrate toxicity
|
methemoglobinemia (can be used to tx cyanide poisoning)
|
|
diltiazem, nifedipine and verapamil are:
|
CCBs
|
|
MOA of CCBs
|
block voltage gates L-type Ca channels (most impt in heart and smooth muscle); decreases contractility
|
|
these can be used to treat AV node arrythmias
|
diltiazem and verapamil; block Ca-dep conduction in AV node
|
|
CCBs are effective against which types of angina?
|
effort and vasospastic
|
|
for atherosclerotic angina what drug combo do you use?
|
CCBs and nitrates
|
|
nimodipine is a CCB that is also approved to tx ___
|
hemorrhagic stroke
|
|
SE of CCBs
|
constipation, pretibial edema, nausea, flushing, dizziness, heart failure, AV block, SA depression
|
|
prophylactic tx of atherosclerotic and exercise-induced angina is by ___
|
B blockers
|
|
SE of beta blockers
|
increased heart size, longer ejection period
|
|
compensatory response of nitroglycerin
|
increased cardiac force
|
|
this drug is most likely to cause methemoglobinemia
|
amyl nitrate
|
|
drugs that cause ____ generally precipitate angina
|
HTN or tachycardia
|
|
SE of nitrates
|
Postural hypotension, reflex tachycardia, hot flashes, and throbbing headache due to meningeal artery dilation
|
|
Beta blockers are used for which type of anginal attack
|
Classic
|
|
Toxicity caused by nitroprusside and treatment
|
Cyanide toxicity treated with sodium thiosulfate
|
|
SE of beta blockers
|
Bradycardia, SEXUAL DYSFUNCTION, decrease in HDL, and increase in Triglycerols (TG)
|
|
CCBs block what type of Ca channels?
|
L-type
|
|
CCB contraindicated in CHF
|
Verapamil
|
|
CCB with predominate effect on arteriole dilation
|
Nifedipine
|
|
SE of CCB
|
Constipation, edema, and headache
|
|
Drugs used in the management of angina
|
Aspirin, Nitrates, CCB, and Beta blockers
|
|
Aspirin reduces mortality in unstable angina by
|
Platelet aggregation inhibition
|
|
Nitrate used for acute anginal attacks
|
Nitroglycerin sublingual tablets
|
|
Nitrate used to prevent further attacks
|
Oral and transdermal forms of nitroglycerin
|
|
Nitrate free intervals are needed due to
|
Tolerance
|