Evolve HESI Medical Surgical Practice Exam Related

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The nurse is teaching the main principles of hemodialysis to a client with chronic kidney disease. Which statement by the client indicates a need for further teaching by the nurse?

  • A. My sodium level changes due to the movement from the blood into the dialysate.
  • B. Dialysis works by the movement of wastes from higher to lower concentration.
  • C. Extra fluid can be pulled from the blood by osmosis.
  • D. The dialysate is similar to blood but without any toxins.
Correct Answer: B

Rationale: The correct answer is B because dialysis works by the movement of solutes from an area of higher concentration to an area of lower concentration, which is known as diffusion. The other statements are accurate: A correctly describes the movement of sodium during hemodialysis, C explains the removal of excess fluid by osmosis, and D highlights the purpose of the dialysate in removing toxins from the blood.