• Removal of dialysable toxins 1
  • Removal of contrast agent 1(less relevant with newer contrast agents)
  • Clearance of cytokines to decrease the severity of sepsis (controversial)
  • Control of body temperature 1(an extracorporeal circuit can help control hypo or hyperthermia which is resistant to other methods of control)
  • Control of otherwise uncontrollable electrolytes: 1
    • ↑ Ca+ refractory to pamidronate
    • Sodium abnormalities resistant to treatment