透析

1. Origins, structure, and basic meaning

• Structure: 透析 is read as とうせき and is a noun for dialysis, which separates substances across a membrane and can remove waste products from blood.
• Basic usage: Its mechanism appears in 透析の仕組み, while a patient receiving the treatment appears in 定期的に透析を受ける.

2. Common pitfalls and similar expressions

• Expression for a patient
  • When a patient regularly receives the procedure, the usual expression is 透析を受ける, rather than wording that presents the patient as performing it.
• Difference from 治療
  • 治療 broadly covers methods of treating illness, while 透析 identifies a specific process or medical procedure based on separating substances.