A client with renal failure is receiving peritoneal dialysis. The nurse is explaining the process to the client. Which statement would the nurse include in a discussion with the client and
family?
A) "The peritoneum is more permeable because of the presence of excess metabolites."
B) "The metabolites will diffuse from the interstitial space to the bloodstream mainly through diffusion and ultrafiltration."
C) "The peritoneum acts as a semi-permeable membrane through which wastes move by diffusion and osmosis."
D) "The solutes in the dialysate will enter the bloodstream through the peritoneum."
Answer: C
The peritoneum acts as a semipermeable membrane, allowing substances to move from an area of high concentration (the blood) to an area of lower concentration (the dialysate). Metabolic waste products and excess water can be eliminated through osmosis and diffusion utilizing the peritoneum as the semipermeable membrane.
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