A patient with chronic renal failure is being treated with continuous ambulatory peritoneal dialysis (CAPD). The nurse realizes this process:


• Continuous ambulatory peritoneal dialysis is a type of peritoneal dialysis that does not require a machine. The walls of the abdominal cavity, called the peritoneum, allow waste products, including creatinine and extra fluids, to be removed from the blood through the process of osmosis and diffusion

• The dialysis solution is left in the abdomen for 3 to 5 hours, and the patient is allowed to walk around during the dwell time 

• Hemodialysis uses the process of ultrafiltration, which requires continuous contact between the blood and dialyzer to clear toxins

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