text: why cant there be an easier way for people on hemodialysis to get treatment other then having to go to center?   for several reasons, one is the cost of the machine and technology- the other is needing a licenced professional to administer  and monitor the patient- after all, all of their blood is being filtered thru a machine, things can go wrong.  what does dialysis do?  like healthy kidneys, dialysis keeps your body in balance. dialysis does the following:      * removes waste, salt and extra water to prevent them from building up in the body     * keeps a safe level of certain chemicals in your blood, such as potassium, sodium and bicarbonate     * helps to control blood pressure