Science Quiz / Diuretic Agents

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Can you name the Diuretic Agents ?

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MOA: Inhibition of the enzyme prevents dehydration of H2CO3 and hydration of CO2
Only parenteral thiazide available
Used for hypertension, mild heart failure, nephrolithiasis, nephrogenic diabetes insipidus
Reduces reabsorption of HCO3- in the kidney causing self limited diuresis
Pharmacologic antagonist of aldosterone
Not a sulfonamide but has typical loop activity and some uricosuric action loop diuretic
Toxicity: Hyperkalemia, gynecomastia
Clinical applications: glaucoma, mountain sickness, edema with alkalosis
Like spironolactone, more selective for aldosterone receptor
Toxicity: Infusion site reactions
MOA: Physical osmotic effect on tissue water distribution because it is retained in the vascular compartment
Inhibition of Na/K/Cl transporter in the ascending limb of Henle's loop
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Popular for use with loop agents for synergistic effects
Toxicities: Hypokalemic metabolic alkalosis, hyperuricemia, hyperglycemia, hyponatremia
Used for peripheral edema, hypertension, acute hypercalcemia, hyperkalemia, acute renal failure, anion overdose
Toxicity: Hyperkalemic metabolic acidosis
Toxicity: Nausea, vomiting, headache. May enhance congestive heart failure or cause pulmonary edema.
MOA: Blocks epithelial sodium channels in collecting tubules
Toxicities: metabolic acidosis, renal stones, hyperammonemia in cirrhotics
MOA: Inhibition of NaCl transporter in the distal convoluted tubule
Toxicities: Ototoxicity, hypovolemia, K wasting, hyperuricemia, hypomagnesemia
Sulfonamide similar to thiazide
Antagonist at V1a and V2 ADH receptors. Reduces water reabsorption and increases plasma Na concentration
Mechanism like amiloride, much less potent, more toxic

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Created Feb 12, 2011ReportNominate
Tags:agent, diuretic

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