Dialysis machine have three basic functions:
- circulation of blood from the patient's access through the dialyzer and back to the access using a blood pump and a disposable tubing set
- preparation of dialysate from purified water and one or more concentrates and circulation of that dialysate through the dialyzer using a system that also controls the rate of fluid removal
- monitoring for any loss of integrity in either the blood or dialysate circuit or any excursion of an operating parameter outside a predefined range
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