Treatment and Management of Peritoneal Dialysis In Brick NJ In peritoneal dialysis, the patient's own body is used as a substitute for the kidneys. Peritoneal membranes surround the intestines naturally and provide a path for toxins and waste products in the blood to diffuse through. If dialysis fluid is placed in the abdominal cavity and left there for a while, the blood will gradually be purified. For more information, go to shorerenalcare.com. in Public bookmarkswith peritoneal-dialysis-brick-njby 24 users