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Dialysis is a medical treatment used when the kidneys are no longer able to perform their normal function of filtering waste products and excess fluids from the blood. Kidneys play a vital role in maintaining the body’s internal balance by removing toxins, balancing electrolytes, and controlling fluid levels. When kidneys fail due to chronic kidney disease, severe injury, or other health complications, harmful substances start building up in the blood, which can be life-threatening. Dialysis acts as an artificial replacement for lost kidney function.
There are two main types of dialysis:
Hemodialysis: In this method, a patient’s blood is passed through a dialysis machine, also known as an artificial kidney. The machine has a special filter called a dialyzer, which removes waste products like urea and excess salts. The cleaned blood is then returned to the patient’s body.
Peritoneal Dialysis: This process uses the patient’s own peritoneum (lining of the abdominal cavity) as a natural filter. A cleansing solution is introduced into the abdomen, which absorbs waste products before being drained out.
Dialysis helps in:
Removing toxins (like urea and creatinine) from the blood.
Maintaining proper fluid and electrolyte balance.
Supporting patients until a kidney transplant is possible or their own kidneys recover.
Dialysis is not a cure for kidney failure but a life-saving supportive treatment that must be performed regularly, often several times a week, depending on the patient’s condition.
Other options in the question are not correct:
Heart weakness is treated by cardiac therapies, not dialysis.
Brain diseases require neurological treatments.
"None of these" is incorrect because dialysis specifically addresses kidney failure.
In conclusion, dialysis is used for the treatment of kidney failure, providing an artificial method of blood purification when kidneys cannot perform their natural function.
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