Diuretics Classification Quiz
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Questions and Answers

What is the primary purpose of using diuretics in animals?

  • To remove extra water volume in animals with edema or volume overload (correct)
  • To induce beneficial hemodynamic effects before the onset of diuresis
  • To correct specific ion imbalances
  • To increase blood pressure and pulmonary capillary wedge pressure

Which diuretic class inhibits the reabsorption of sodium and chloride in the thick, ascending loop of Henle?

  • Carbonic anhydrase inhibitors
  • Thiazides
  • Potassium-sparing diuretics
  • Loop diuretics (correct)

What is the potential consequence of combining diuretics from different classes?

  • Maximal response within a class
  • Decreased renal perfusion
  • Increased fluid retention
  • Additive and potentially synergistic effects (correct)

What is the role of renal vasodilation induced by furosemide?

<p>Dependent on the local synthesis of prostaglandins (A)</p> Signup and view all the answers

What is the duration of diuretic action of furosemide after IV administration?

<p>2 hours (C)</p> Signup and view all the answers

What is the percentage of protein binding for furosemide?

<p>91%–97% (A)</p> Signup and view all the answers

What is the clearance route of furosemide from the body?

<p>Renal tubular secretion (B)</p> Signup and view all the answers

What is the bioavailability of oral furosemide in small animals?

<p>50% (B)</p> Signup and view all the answers

In which patients might higher-than-normal doses of furosemide be required?

<p>Patients with renal disease (C)</p> Signup and view all the answers

What is the major adverse effect from acute administration of large doses of furosemide?

<p>Acute decrease in intravascular volume (D)</p> Signup and view all the answers

Which type of diuretic is torsemide?

<p>Loop diuretic (C)</p> Signup and view all the answers

What happens to the efficacy of furosemide after 14 days of repeated administration?

<p>It decreases (A)</p> Signup and view all the answers

Which diuretics act on the proximal portion of the distal convoluted tubule to inhibit sodium reabsorption?

<p>Thiazide diuretics (D)</p> Signup and view all the answers

Which diuretics decrease the renal excretion of calcium?

<p>Thiazide diuretics (C)</p> Signup and view all the answers

Which drug interaction is a concern when administering furosemide?

<p>NSAIDs (D)</p> Signup and view all the answers

Which potassium-sparing diuretic is most frequently used in veterinary medicine?

<p>Spironolactone (C)</p> Signup and view all the answers

What is the primary function of aldosterone in the renal tubules?

<p>Increase potassium and calcium reabsorption (C)</p> Signup and view all the answers

Why is spironolactone not recommended as monotherapy for heart failure?

<p>It causes hyperkalemia (B)</p> Signup and view all the answers

What is the primary mode of action of carbonic anhydrase inhibitors?

<p>Inhibit the formation of carbonic acid (B)</p> Signup and view all the answers

What is the preferred route of administration for DMSO in large animals?

<p>Intravenous (C)</p> Signup and view all the answers

What is a potential consequence of administering repeated doses of mannitol?

<p>Edema (B)</p> Signup and view all the answers

Which system is activated in response to hyponatremia, hyperkalemia, and decreases in blood pressure or cardiac output?

<p>Renin-angiotensin-aldosterone system (RAAS) (D)</p> Signup and view all the answers

What is the primary function of spironolactone at its receptor site?

<p>Result in mild diuresis and potassium retention (C)</p> Signup and view all the answers

Why should spironolactone not be administered concurrently with potassium supplements?

<p>It causes hyperkalemia (D)</p> Signup and view all the answers

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