Techniques
Filter & Circuit Patency
  • Visual Checks
  • Access pressures
  • Filtration fraction
Filter Efficacy
  • FUN/BUN ratio
Anticoagulant Effect
  • UFH: ACT post-filter / aPTT
  • LMWH: anti-Xa
  • Citrate: systemic and post-filter ionised calcium
  • Prostacyclin: thromboelastography
  • Lepuridin: aPTT
  • Bivalirudin: apTT
Complications
  • Bleeding
  • Systemic anticoagulation
  • HIT
  • Metabolic problems