<unk> , also spelled<unk> , or simply dialysis, is a process of purifying the blood of a person whose kidneys are not working normally. This type of dialysis achieves the extracorporeal removal of waste products such as creatinine and urea and free water from the blood when the kidneys are in a state of kidney failure.<unk>  is one of three renal replacement therapies (the other two being kidney transplant and peritoneal dialysis). An alternative method for extracorporeal separation of blood components such as plasma or cells is apheresis.<unk>  can be an outpatient or inpatient therapy. Routine<unk>  is conducted in a dialysis outpatient facility, either a purpose built room in a hospital or a dedicated, stand-alone clinic. Less frequently<unk>  is done at home. Dialysis treatments in a clinic are initiated and managed by specialized staff made up of nurses and technicians; dialysis treatments at home can be self-initiated and managed or done jointly with the assistance of a trained helper who is usually a family member.
Hemodialysis
Iridodialysis
Peritoneal dialysis
Dialysis
Hemofiltration
Home hemodialysis
Hemoperfusion
Intravenous sodium bicarbonate