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204 Renal Agents/ Diuretic Agents Final Study guide Flashcards

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1532597815*DiureticsAgents that increase Urine Output, increases the excretion of solutes and water, Main purpose: eliminate excess fluid from the body0
1532597816*Primary goal of diuretic therapyreduce extracellular fluid volume in order to: Lower blood pressure, Rid body of excess interstitial fluid1
1532639615*Kidneysare paired retroperitoneal organs, Perfused by renal artery, Active organ (not a passive filter)2
1532639616*Nephronis the Functional unit of the kidney, is composed of the glomerulus, proximal tubule, loop of henle, distal tubule and collecting duct.3
1532639617*Glomerulus (filtrate)filtration of fluid from the blood to the tubule occurs here, more than 99% is reabsorbed and less than 1% is excreted as urine4
1532639618*OliguriaUrine output < 30 - 60 mL/hr5
1532639619*AnuriaNo urine output6
1532639620*PolyuriaUrine output > 60 mL/hr7
1532639621*Na+ (Sodium)70% of this is reabsorbed in the proximal tubules, 20% in loops of Henle, 10% in distal tubules, Inhibition causes less H2O retention8
1532639622*AldosteroneIncreases Na+ and H2O reabsorption in the Distal Tubule9
1532639623Spironolactoneis a diuretic that increases Na+ and H2O loss by inhibiting aldosterone10
1532639624*Diureticsare relevant to respiratory and critical care clinicians to treat hypertension and congestive heart failure (CHF)11
1532639625*Osmotic (diuretic group)impairs proximal tubule and descending limb of loop of Henle to reabsorb NaCl12
1532639626*Carbonic Anhydrase inhibitors (diuretic group)treats glaucoma, metabolic alkalosis, and altitude sickness, potential for metabolic acidosis-limits use, Hypokalemia is a common adverse effect, Decrease HCO3- and NaCl reabsorption (within proximal tubule)13
1532639627*Thiazides (diuretic group)block NaCl reabsorption at the Distal Tubule, Not much difference between minimal and maximal doses14
1532639628*Loop(diuretic group)inhibit NaCl reabsorption at the Thick Ascending Limb of Henle, "High-ceiling" diuretics, Up to 20% of NaCl and H2O is lost15
1532639629*Potassium-Sparing (diuretic group)block exchange of Na+ for K+ and H+, Weak action, in collecting duct, May cause hyperkalemia16
1532639630*Adverse Effects of DiureticsHypovolemia (low fluid volume), electrolyte and acid-base disorders are most common17
1535669539*Chloride and bicarbonateCl- and HCO3- are passively reabsorbed in the proximal and distal tubules18
1535669540*Potassiummost filtered K+ is reabsorbed in the proximal tubules, found in urine19
1535669541*Mannitolis an Osmotic Diuretic and is typically a selected agent because of its lower toxicity20
1535669542*Hypovolemiawhen sodium and fluid excretion exceed intake21
1535669543*Hypokalemialow potassium levels in the body22
1535669544*Glucose changesthe average increase in serum glucose is 6.5 to 9.6 mg/dL, associated with diabetic ketoacidosis23
1535669545*Ototoxicityhearing loss, reducing the infusion rate or administering the drug orally may alleviate the hearing loss24

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