A dialysis extraporeal circuit (containing blood lines and a dialyser) contains between 200-300mls. This blood filled circuit can clot at any stage resulting in blood loss to the patient.
Measures to minimise the risk of clotting within the circuit include:
- Ensuring adequate anticoagulation is used
- Maintaing optimal blood flow
- Removing fluid within the patients safe/tolerated limits (no more than 5% of body weight or 10-15 mls/kg/hour)
- Ensuring that the dialysis machine tests are complete and passed, indicating the machine is safe to use