Paper I
2019 February (2010 Scheme) · 40 marks · 120 min

Question

Furosemide

Q73 marksShort Notes

Answer

Furosemide is a loop diuretic.

Mechanism of action

  • Inhibits the Na⁺-K⁺-2Cl⁻ (NKCC2) cotransporter in the thick ascending limb of the loop of Henle, abolishing the medullary concentration gradient and causing marked natriuresis and kaliuresis

Uses

  • Acute pulmonary oedema/left ventricular failure
  • Chronic congestive cardiac failure
  • Oedema (hepatic, renal, nephrotic syndrome)
  • Acute renal failure
  • Hypertension, hypercalcaemia

Adverse effects

  • Hypokalaemia, hyponatraemia, hypomagnesaemia
  • Hypotension, dehydration
  • Ototoxicity
  • Hyperuricaemia
  • Hyperglycaemia
  • Metabolic alkalosis

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