peritoneal dialysis
definition of peritoneal dialysis
1. a way to clean the blood when the kidneys are unable to work (kidney failure) by using the lining of the abdomen as a filter. A cleansing liquid (dialysis solution) is drained from a bag through a tube (catheter) into the abdomen. Fluids and wastes flow through the lining of the abdomen and are trapped in the dialysis solution, which is then drained through the catheter, removing the extra fluids and wastes from the body.1