Dialysis is a therapeutic procedure that allows the removal of excess toxins (urea and inorganic salts), when there are problems with the functioning of the kidneys. The patient's blood, loaded with waste, contacts, artificially-with a semipermeable membrane, across which is a sterile solution. The membranes used for dialysis may be the patient's peritoneum (peritoneal dialysis), or cellophane membranes, filaments of cellulose or synthetic materials (extracorporeal dialysis). The first solution is injected into the peritoneum, which is balanced with the blood and eliminates, through the removal of peritoneal fluid, a quantity of toxic substances. In the second, using the same method, but through an artificial kidney.
Generally, the procedure is performed every 24 or 36 hours, and the need for repeated dialysis requires the addition of a fixed plastic button for peritoneal dialysis.
During the process of dialysis, urea from the blood passes through a semipermeable membrane to the solution that is within them that, in turn, supply blood to alkaline substances to reach osmotic equilibrium.