renal pharm Flashcards
MOA of mannitol
osmotic diuretic. increases tubular fluid osmololity, increasing urine flow,
uses for mannitol
reduces ICP, IOP, drug overdose
tox of mannitol
pulmonary edema, dehydration, contraindicated in anuria and CHF
site of mannitol action
PCT
site of acetazolamide action
PCT
acetazolamide MOA
carbonic anhydrase inhibior. casues NaHCO3 diuresis and reduction of bicarb body stores
use of acetazolamide
glaucoma, urinary alkinization, metabold acidosis, altitide sickness, pseudotumor cerebri
tox of acetazolamide
hyperchloremic metabolic acidosis, paresthesias, NH3 tox, sulfa allergy
loop diuretics
furosemide, ethacrynic acid, HCTZ,
site of furosemide, ethacrynic acid, action
thick ascending loop
MOA of furosemide
inhibits Na/K/2 CL- cotransport system. Stimulates PGE release, increases Ca++ excretion
drug that will counteract furosemide
NSAIDS
uses of furosemide
quick need for fluid loss (CHF, cirrhosis) hypertension, hypercalcimia
tox of fuseromide
ototox, hypokalemia, dehydreation, sulfa allergy, nephritis, gout
use of ethacryinic acid
people needing fusuromide that are allergic to sulfa drugs
NEVER USE THIS TO TREAT GOUT
ethacrynic acid
HTCZ action location
DCT
HCTZ MOA
inhibits NaCl reabsorption at DCT, reducing diluting capacity of nephron. inhibits Ca excretion
use of HCTZ
hypertension, CHF, indiopathic hypercalcuria, nephrogenic DI.
tox of HCTZ
hypokalemic metabolic acidosis, hyponatremia, hyperglycemia, hyerlipidemia, hyperuricema, hypercalcemia, sulfa allergy
HCTZ should not be used with this chronic disease
DM
K sparing diuretic names
Spirolactone, eplerenone, triamterterene, amiloride (SEAT)
Spirolactone, eplerenone, MOA
competitive aldosterone receptor agonists in the CCT
triamterterene, amiloride MOA
block Na Channels in CCT
use of K sparing diuretic
hyperaldosteronism, K depletion, CHF
tox of K sparing diuretic
high potassium, endrocrine effects with spirolactone
-sartan drugs
ARBs
MOA of ARBs
same as ACEis, but don’t increase bradykinin (no cough or angiodemia)
tox of ACEis
cough, angioedema, birth defects, increase in creatine (lower GFR), high K, hypotension
avoid this drug in renal artery stenosis
ACEi
use of ACEis
hypertension (ESPECIALLY WITH DM), CHF, prevents bad heart remodelling as a result of chronic hypertesion