fistula (arterio-venous fistula) (A-V fistula)

before you can begin hemodialysis, there needs to be a way to remove the blood from your body (a few ounces at a time) and then return it. Your arteries and veins are usually too small, so a fistula is made by joining an artery and a vein under the skin in your arm.

commonly used method of providing access to the blood stream in which a vein and an artery in your arm are joined together.