Question

Why do some people need to use a dialysis machine? What does the machine do?

Answer 1

The major waste products of cells are nitrogenous compounds such as ammonia and urea. Both compounds are toxic to the human body and must be regularly removed from the blood. The kidneys remove these wastes from the body. However, if the kidneys fail to function, waste may accumulate and damage internal organs, which can even lead to the death of the organism. Therefore, in cases of kidney failure, blood must be filtered periodically using a dialysis machine to remove accumulated waste products from the body.
The dialysis machine cleans a person’s blood by removing nitrogenous waste products.