The only visit to the study will be carried out during a usual dialysis session in the intensive care unit of Clermont-Ferrand University Hospital. In addition to the usual care, 2 blood samples will be taken from the blood circuit 1 hour after the start of the hemodialysis session by the nurse in charge of the patient.
The primary purpose of this study is to validate a mathematical modeling of treatment by intermittent hemodialysis using regional citrate anticoagulation with a dialysate containing calcium