<prompt> Which is a Loop diuretic?AcetazolamideIndapamideTriamtereneBumetanide  <response>: D Bumetanide Furosemide, Bumetanide are loop diuretics which inhibit NaK 20 symport from thick ascending limb of loop. Indapamide is thiazide diuretic inhibits Na Cl symport in distal convoluted tubule. Triamterene, Spironolactone are potassium sparing diuretics, inhibits Na flux in the tubule. High efficacy Loop diuretics are: Sulphonyl derivatives - Furosemide, Bumetanide Phenoxyacetic acid derivative - Ethacrynic acid Organomercurials - Mersary 