"When the kidneys fail, the waste produced by the body is not discarded. If the waste products remain in the body for long, it becomes harmful. Dialysis acts as the artificial kidney and does the recycling, filtering out impurities," Acute Renal Failure (ARF) may be the result of severe dehydration or injury to kidney caused by leptospirosis (rat fever), snakebite, obstetric renal failure and so on. "If an accident victim has not suffered from serious injuries, despite a temporary shutdown of the kidneys, dialysis can save his or her life," About The number of diabetics is increasing at present days. Acute diabetes and hypertension may also lead to renal failure," 20 years ago, if a patient had renal failure, he would have died sooner or later. Fortunately, medical technology has made considerable advancement since then. The symptoms of renal problem are nausea, fatigue, breathlessness on slight exertion, oedema, hypertension of any unrecognised reason and urinary abnormality. Most people tend to overlook these symptoms, and are diagnosed late, the number of cases of renal failure is increasing day by day and prohibitive cost of drugs is making life more miserable for patients, say nephrologists.
When kidney disease reaches an end stage, kidneys lose about 85-90% of their efficiency. Kidneys cannot remove toxins from the body with such reduced level of efficiency. At this stage, only dialysis can help the patient to survive. It is a process of removing toxins from the body using an external device. In short, it mimics the function of kidneys to some extent. It can be done using two methods - hemodialysis and peritoneal dialysis. In hemodialysis, a tube is connected to the arteries, which takes the blood for purification to the dialysis machine. In the machine, a dialysis membrane is present, which removes the toxins from the blood and returns the purified blood. This blood is flown back in the body through a tube connected to the veins.