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Diuretics
Diuretics: nursing pharmacology
23
Pharmacology
Undergraduate 2
01/19/2011

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Term
Diuretic
Definition
an agent that increases formation of urine
Term
Natriuretic
Definition
an agent that preferentially aids excretion of Na
Term
Kalium
Definition
pertaining to K+
Term
elimination of Na
Definition
what is the main therapeutic aim of diuretics?
Term
acetozolamide
Definition

the main action of this weak diuretic is to inhibit carbonic anhydrase.

It's used in glaucoma, mountain sickness, and it facilitates the excretion of acidic drugs.

Term
mannitol
Definition
this diuretic is filtered at the glomerulus, but not reabsorbed along the nephron
Term
mannitol
Definition
this osmotic diuretic is used in cerebral edema, hydrocephalus, brain surgery, and acute renal failure
Term
congestive heart failure, HTN
Definition
What is mannitol contraindicated in?
Term
the ascending loop of henle
Definition
what is the site of loop diuretics?
Term
furosemide (lasix)
Definition
this loop diuretic has a high ceiling and is close to 100% effective
Term
furosemide (loop diuretic)
Definition
this drug inhibits the Na/K symporter and has a powerful natriuretic effect by excretion of high percentage of filtered Na. Also produces kaliuresis
Term
hyponatremia, hypokalemia, ototoxicity
Definition
adverse effects of furosemide
Term
early distal tubule
Definition
what is the site for thiazide diuretics?
Term
Late DT and collecting tubule
Definition
what is the site for K-sparing diuretics?
Term

chlorothiazide

hydrochlorothiazide

Definition
name the thiazide diuretic drugs
Term
HTN, edema, nephrogenic diabetes insipidus
Definition
what are thiazides used for?
Term
Spironolactone
Definition
This K+ sparing drug is aldosterone dependant
Term

Triamterene

Amiloride

Definition
These K+ sparing diuretics are aldosterone-independent
Term

hirsutism

gynecomastia

Definition
what is the adverse effect Spironolactone (K+ sparing) 
Term
K+ sparing diuretics
Definition
these diuretics are used in HTN, treatment or prevention of hypokalemia induced by loop and thiazide diuretics
Term

DEmeclocyclin

(collecting duct diuretic)

Definition
this diuretic is a non-competitive ADH Antagonist used in the syndrome of inappropriate ADH secretion
Term

Desmopressin

(cortical collecting duct antidiuretic)

Definition
this drug is a synthetic analogue of ADH and produces a concentrated urine with increased osmolality. It is the drug of choice for central diabetes insipidus
Term

Conivaptan

(Vasopressin Antagonist)

Definition
This drug ia an antagonist at V1 and V2 ADH receptors it reduces H2O reabsorption and increases plasma Na concentration. It's used for hyponatremia.
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