A client with chronic kidney disease selects treatment using continuous ambulatory peritoneal dialysis (CAPD). Which statement indicates the client understands the purpose of this therapy?
1 "The treatment provides continuous contact of dialyzer and blood to clear toxins by ultrafiltration."
2 "The treatment exchanges and cleanses blood by correction of electrolytes and excretion of creatinine."
3 "The treatment decreases the need for immobility, because the fluids clear the toxins in short and intermittent periods."
4 "The treatment uses the peritoneum as a semipermeable membrane to clear toxins by osmosis and diffusion."
4 (Diffusion moves particles from an area of greater concentration to an area of lesser concentration. Osmosis moves fluid from an area of lesser concentration to an area of greater concentration of particles, thereby removing waste products into the dialysate, which is then drained from the abdomen. The principle of ultrafiltration involves a pressure gradient, which is associated with hemodialysis, not peritoneal dialysis. Peritoneal dialysis uses the peritoneal membrane for indirect cleansing of the blood. Dialysate does not clear toxins in a short time; exchanges may occur four or five times a day.)

Osmosis transfers fluid from a region with low particle concentration to one with high particle concentration, eliminating waste materials into the dialysate that is then drained from the abdomen.

Since hemodialysis, not peritoneal dialysis, requires a pressure gradient, ultrafiltration works on the same principles.

Therefore, the peritoneal membrane is used in peritoneal dialysis to indirectly clean the blood hence option 4 is correct.

Learn more about CAPD, here:

https://brainly.com/question/14616820

#SPJ1