Before hemodialysis can be done, a way for blood to leave and return to your body (an access) is needed. A hemodialysis access is often made in your arm. The 2 main types of accesses are an arteriovenous fistula (AV fistula) and an arteriovenous graft (AV graft).
In order for a dialysis machine to clean excess fluid or waste material from a person's blood, the patient needs to be connected to the machine, usually for several hours, three times a week. This connection, or fistula, is often made in the patient's arm, where an artery is surgically connected to a vein. Learn more about this access point, or AV fistula, and how it works, by watching this program.