Hemodialysis

Hemodialysis is a blood purification method used for kidney failure. In hemodialysis, the patient's blood is passed through a machine called a dialyzer or artificial kidney.

The dialyzer consists of a semi-permeable membrane that divides it into two parts. The patient's blood flows on one side of the membrane, and the dialysate solution flows on the other. Due to the difference in concentrations of substances between the blood and the dialysate, diffusion occurs: toxins, excess water and metabolic products are removed from the blood, and the necessary substances from the dialysate solution enter the blood.

Thus, hemodialysis allows the kidneys to perform the functions of purifying the blood and maintaining water-salt and acid-base balance in case of renal failure. The procedure is carried out regularly 2-3 times a week for 4-5 hours.