Dialysis is defined as

Dialysis is defined as

• A. The body's natural filtering by kidneys
• B. The process by which toxins are removed from the body independent of the kidneys
• C. A surgical removal of kidney stones
• D. Production of urine

Answer: (B)

Dialysis is the artificial process of removing wastes and excess fluids from the blood when the kidneys can’t perform that job. It acts as a substitute for kidney filtering, using machines or the body's peritoneal lining as the filter. That’s why the option describing toxins being removed from the body independent of the kidneys is correct—it reflects dialysis as an alternative to natural kidney function. The other ideas describe normal kidney activities or unrelated procedures: filtering by functioning kidneys, surgical removal of stones, or producing urine—none of which capture what dialysis does.

Dialysis is the artificial process of removing wastes and excess fluids from the blood when the kidneys can’t perform that job. It acts as a substitute for kidney filtering, using machines or the body's peritoneal lining as the filter. That’s why the option describing toxins being removed from the body independent of the kidneys is correct—it reflects dialysis as an alternative to natural kidney function. The other ideas describe normal kidney activities or unrelated procedures: filtering by functioning kidneys, surgical removal of stones, or producing urine—none of which capture what dialysis does.