A haemodialysing unit is also called artificial kidney because it is responsible for performing the same functions that a kidney functions.

It helps to remove toxic nitrogenous wastes from the blood without the loss of plasma proteins.

This unit is provided to those patients whose kidneys have failed or are malfunctioning so that the toxic excretory products can be removed from their body which otherwise would have resulted in accumulation of urea in blood which is lethal due to its toxicity.

^A haemodialysis unit