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6. how do osmotic diuretics like mannitol Oppose water reabsorption at multiples sites around nephron

  • promote sodium loss by disrupting tubular K+ gradients
  • promote sodium loss by disrupting tubular sodium gradients
  • promote sodium loss by disrupting tubular calcium gradients

7. A rise in urine osmolarity is caused by osmotic diuretics (increased urine volume), what is the blockade of hormone receptors or ion channels caused by?

  • K+ sparing diuretics
  • Ca2+ sparing diuretics

8. blocking what actions in the late renal tubule impacts on the 5% (variable) sodium reabsorption regulated by this hormone, which leaves more sodium in the filtrate; and this translates into a small rise in urine volume (a very low ceiling diuresis).

  • aldosterone
  • cortisol
  • potassium

9. thiazide-like agents include

  • xipamide
  • bendroflumethiazide
  • indapamide
  • chlortalidone
  • metolazone

10. Their large scale diuretic effect stems from what. select incorrect answer

  • disruption to the medullary hyperosmotic (or hypertonic) gradient
  • non-diuresis
  • natriuresis

11. what is a mainstream approach to preventing sodium reabsorption and eliciting natriuresis, with attendant diuresis

  • The inhibition of loop of henle cotransporters i.e. either the NaK2Cl or NaCl cotransporter
  • The inhibition of tubular ion cotransporters i.e. either the NaK2Cl or NaCl cotransporter
  • The inhibition of tubular ion cotransporters i.e. either the NaK2Cl2 or NaCl cotransporter

12. which of the following is NOT classed as a K+ sparing diuretic?

  • eplerenone
  • amiloride
  • triamterene
  • amilamide
  • spironolactone

13. Loop diuretics, named after their site of action to inhibit NaK2Cl cotransport in the loop of Henle, include what. select wrong drug

  • lidonemide
  • bumetanide
  • furosemide
  • torasemide

14. loop diuretics can lead to disturbances such as: select untrue answer

  • hypovolaemia
  • hypoglycaemia
  • hyponatraemia
  • hypokalaemia