Kidneys are responsible for eliminating waste products from the body. They filter the blood and make urine. When kidneys are unable to go about the usual waste management to their fullest potential, toxins start to build up in the body. Acute renal failure and chronic kidney disease also occur when kidney function gets affected adversely. Hemodialysis is the therapy that is required at such times.
Hemodialysis treatment removes extra fluid from the body, filtering waste and maintaining electrolyte balance in one's body. A nephrologist uses an artificial kidney or hemodialyzer for purifying your blood by getting rid of wastes from it. Before the treatment, doctor notes down your vital sign statistics and the body weight. This is necessary to help the doctor get an understanding as to how much fluids are to be filtered from the body.