Level 1
Diuretics
Drugs acting on the Loop of Henle - frusemide (furosemide)
Level 2
Nil
Level 3
Diuretics
Drugs acting on the distal tubule or collecting duct – thiazides and aldosterone antagonists
Drugs acting on the proximal tubule – carbonic anhydrase inhibitors
Osmotic agents – mannitol
Renal replacement fluid
Including a brief outline of variants relating to mechanisms of anticoagulation