Patients are connected to a dialysis machine which acts as an artificial kidney to remove most of the urea and restore/maintain the water and ion balance of the blood.
A system for artifically 'cleaning the blood', removing urea and excess ions and water from the blood.
a) Haemodialysis - A machine takes over the function of the kidneys.
- Blood is passed through a system of tubing made from a cellulose like substance that is partially permibale
- The tubing is surrounded by dialysis fluid - this contains glucose and useful minerals and has simialr concentrations to normal blood plasma
b) Peritoneal dialysis - the layer of tissue in the abdoment is used as the dialysis membrane
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