I think you are refering to dialysis.
A hemodialysis machine behaves like a "kidney machine." It is used to filter wastes in people whose kidneys are no longer functioning.
kidney dialysis
Urinalysis is a determination, by means of various chemical tests, of the composition of a urine sample, which is done to observe any medically significant anomalies (red blood cells, elevated sugar level, albumin, etc.). Dialysis is a treatment given by an artificial kidney machine, that filters the blood in the same way that kidneys do; this can be done for people whose kidneys have failed.
People whose diet is high in protein or who eat foods rich in oxalate are more likely to develop kidney stones
It is the kidneys' job to remove poisons and other undesirable chemicals from the bloodstream. If they do not do their job, we rapidly sicken and die. A person can succumb from total kidney failure in just a few hours. Dialysis is a treatment that filters the blood for people whose kidneys are not capable of providing that service. Some causes of kidney failure are injury due to blows in the lower back, infection, severe bodily damage, such as burns or liver failure that release great quantities of toxins into the bloodstream, high blood pressure, and diabetes. If both kidneys are unable to function, the only recourse is dialysis or a kidney transplant. Dialysis is sometimes used on a short-term basis to treat other conditions involving toxins in the blood, but kidney failure is the most common reason for use.
Total and permanent kidney failure is called ESRD. If a person's kidneys completely stop working your body fills with extra water and waste . It's called uremia. Hands or feet might swell and you will feel tired and weak because the body needs clean blood to function properly. Untreated uremia may lead to seizures or coma and will ultimately result in death. A person whose kidneys stop working completely will need to undergo dialysis or kidney transplantation.
Kidneys are essential organs that help filter waste and excess fluids from the blood to create urine. They also help regulate blood pressure, electrolyte balance, and red blood cell production, contributing to overall health and well-being. Without functioning kidneys, waste and fluids can build up in the body, leading to serious health complications.
If someone's kidneys were not working properly, their electrolyte balance would likely be disrupted. Kidneys play a crucial role in regulating electrolyte levels in the body by filtering and excreting excess electrolytes. Without proper kidney function, electrolytes like sodium, potassium, and calcium may become imbalanced, leading to potentially serious health complications.
Renal dialysis is done for someone when their kidney function is so low, that toxins build up in the blood and literally poison the person. Dialysis takes over the function of the kidneys. The treatment is normally done on an out patient schedule - 3 times a week, anywhere from 3 or 4 hours to 6 hours per day. Depending on other medical conditions the person is suffering with; following the treatment they either feel great or completely worn out. For some people dialysis is a stop gap procedure, until they get a match for a kidney transplant. For others - whose kidney failure is part of a system wide organ failure - it is an attempt to keep them alive and as well as can be expected, for the shape they are in.
Approximately 1,500 liters of blood are filtered by a healthy person's kidneys each day. We could not live if waste products were not removed from our kidneys. People whose kidneys either do not work properly or not at all experience a buildup of waste in their blood. Without dialysis the amount of waste products in the blood would increase and eventually reach levels that would cause coma and death. Dialysis is also used to rapidly remove toxins or drugs from the blood.
Anyone whose battery has failed.
Herbert Hoover