DIALYSIS is used for patients having kidney trouble.Dialysis is a treatment that filters and purifies the blood using a machine.This helps keep your fluids and electrolytes in BALANCE when the kidneys can't do their job.Dialysis has been used since the 1940s to treat people with kidney problems.If the kidneys fail completely, the only treatment options available are dialysis for the rest of your life or transplant.Functions of Kidney:kidneys PREVENT extra water, waste, and other impurities from accumulating in your body. They also help control blood pressure and regulate the levels of chemical elements in the blood.These elements may include sodium and potassium.Your kidneys EVEN activate a form of vitamin D that improves the absorption of calcium.Types of Dialysis:Hemodialysis - This process uses an artificial kidney to remove waste and extra fluid from the blood.The blood is removed from the body and filtered through the artificial kidney.The filtered blood is then returned to the body with the help of a dialysis machine.Peritoneal dialysis:Peritoneal dialysis involves surgery to implant a peritoneal dialysis (PD) catheter into your abdomen.The catheter helps FILTER your blood through the peritoneum, a membrane in your abdomen.During treatment, a special fluid called dialysate flows into the peritoneum.The dialysate absorbs waste.Once the dialysate draws waste out of the bloodstream, it’s drained from your abdomen.This process takes a few hours and needs to be repeated four to six times per day.