As with hemodialysis, SMG nurses may provide peritoneal dialysis services to either patients requiring ongoing care for End Stage Renal Disease (ESRD) or who have developed Acute Kidney Injury (AKI). Whereas in hemodialysis the blood is removed from the body, passed thru a filter, and then returned to the body, peritoneal dialysis is performed by placing dialysate fluid in the abdomen, have it dwell there for a period to allow the transport of fluid and toxins out of the body into the dialysate, and then drained. This procedure can be done two different ways. Continuous Ambulatory Peritoneal Dialysis (CAPD) is done manually by the SMG nurse every 4 to 6 hours. Continuous Cycler Peritoneal Dialysis (CCPD) is similar but uses a cycler machine that usually performs these exchanges at night while the patient is asleep. The SMG nurse will prepare the patient and the machine and will terminate the procedure in the morning. In order to perform peritoneal dialysis a catheter will be inserted into the abdominal cavity. This catheter may have been previously placed as with patients who receive peritoneal dialysis on a chronic basis and or may be placed on a temporary basis.