About this unit 4 Center is a 34-bed surgical unit which specializes in patients with acute and chronic kidney and liver disease. We care for patients going for kidney and liver transplants and those undergoing nephrectomy for the purpose of donating. We admit our transplant patients prior to surgery and care for them post operatively after they are downgraded from ICU. Patient education is a large part of what we do, and we work closely with our Transplant Medical Team.