If your kidneys cannot keep your blood filtered and purified, dialysis performs the function of your kidneys using a machine.
The kidneys filter your blood by removing waste and excess fluid from your body. This waste is sent to the bladder to be eliminated when you urinate.
When your kidneys can’t perform well due to disease or injury, dialysis can help keep the body running. Kidney failure occurs when the kidneys perform only 10% to 15% of their typical function. Without dialysis, salts and other waste products accumulate in the blood and can damage other organs.
Learn more about dialysis, including the different types and possible risks.
How do different types of dialysis work?
Types of dialysis can include hemodialysis, peritoneal dialysis, and continuous renal replacement therapy (CRRT).
What is hemodialysis?
Hemodialysis is a form of dialysis that uses a filter called a hemodialyzer to remove waste and extra fluid from the blood.
Before hemodialysis
A doctor performs minor surgery to create an entry point into your blood vessels. This is done in advance, as it may take several monthsTrusted Source to heal.
The three types of entrance points include:
- Arteriovenous (AV) fistula
- AV graft
- Vascular access catheter
Both the AV fistula and AV graft are designed for long-term dialysis treatments. Catheters are designed for short-term or temporary use.
