Term
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Definition
-semide ending
high ceiling diuretic
Inhibition of Na/2Cl/K cotransporter at thick ascending loop of Henle
causes smooth muscle relaxation
GFR and RPF unchanged |
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Term
Side effects of loop diuretics |
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Definition
- low K, Cl, Mg (give Mg)
- cardiac arrhythmias
- low Ca (used as treatment for hypercalcemia
- high uric acid (competitive inhibition of PSOASS, which removes uric acid)
- high glucose, high TGs, low HDL, high pH (alkalosis --> hypokalemia)
- ototoxicity (cochlear>vestibular), increased with aminoglycosides and cisplatin
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Term
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Definition
treatment of gout
microtubule inhibition |
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Term
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Definition
acute renal failure
pulmonary edema
increased intracranial pressure
increased intraocular pressure/glaucoma |
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Term
Oral Use of Loop Diuretics |
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Definition
increased bp (if thiazides don't work)
cardiac insufficiency
renal insufficiency |
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Term
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Definition
low ceiling diuretic
-thiazide ending
Inhibition of Na/Cl cotransport in early distal tubule, secreted actively (like loops)
increases urine volume modestly, but decreased in DI |
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Term
Side effects of thiazides |
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Definition
increased uric acid
decreased carbonic anhydrase
decreased GFR and RPF
do not use in ARF, no IV
low K, Mg, Cl
high plasma Ca, low urine Ca
increase glucose, TG, low HDL |
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Term
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Definition
increased bp
cardiac insufficiency and edema
diabetes insipidus
urinary Ca stones
combine with potassium sparing drug: aldosterone antagonists, cycloamidine derivatives |
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Term
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Definition
aldosterone antagonists (eg spironolactone)
and
cycloamidine derivatives (eg triamterene, which depletes folic acid)
not diuretic use on their own |
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Term
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Definition
spironolactone + cycloamidine
ACE + any K sparing
K supplements + ACE or any K sparing
due to danger of hyperkalemia |
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Term
Carboanhydrase inhibitors |
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Definition
acetazolamide
secreted into tubule(?), inhibits CA in early proximal tubule
rare use as diuretic, mainly used to maintain pH, induces acidosis in blood (and alkalosis in urine)
used for prevention of mountain sickness, glaucoma, sequential nephron blockade |
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Term
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Definition
caffeine, theophylline, theobromine
at low [], adenosine-1 receptor blocker, which causes vasoconstriction of the efferent kidney arteriole |
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