your doctor May recommend dialysis a procedure that removes waste products from your blood if your kidneys are not functioning properly healthy kidneys filter out waste excess fluid and electrolytes like pottassium and sodium from the blood these waste products exit the body through the urethra in the form of urine if you have kidney disease your kidneys gradually lose function leading to an accumulation of harmful wastes and excess fluid in your body increased blood pressure and bone or blood problems dialysis can also be done to treat acute kidney failure which occurs when your kidneys stop working suddenly or to remove drugs or poisons from your body in one type of dialysis called hemodialysis your doctor will use a machine called a dialyser to clean your blood outside your body some weeks or months before you begin hemodialysis your doctor will prepare a vascular access site on your body your doctor will create either an arterovenous graft or an arterovenous fistula to access your bloodstream to begin he or she will numb the area with local anesthesia to construct an arterovenous graft your surgeon will make a small incision in your forearm and insert a soft plastic tube called a graft to connect an artery to a vein to create an arterovenous fistula your surgeon will make a small incision in your skin and connect an artery with a vein to make a larger vessel called a fistula once your vascular access site has healed your doctor can start hemodialysis to begin your dialysis nurse will insert two needles into your AV fistula or grass once the circuit is set up your blood will flow slowly out of your body and through the dialer inside the dialer your blood will encounter filtering fibers and an absorbent cleaning solution called dialysate the fibers will remove waste and excess fluids and electrolytes from your blood your cleaned blood will emerge from the dialer and continue through the tubing back into your body through the second needle at your access site when your hemodialysis session is complete the needles and tubing are removed and you can go home in another type of dialysis your doctor will use the membranes lining your abdomen called the parium to clean your blood without removing it from your body before you begin perianal dialysis you will have an operation to implant a soft tube called a catheter your surgeon will insert the catheter near your belly button creating a port through which the dialysate will enter and leave your abdomen each paranal dialysis session is called an exchange first you will use your catheter to fill your abdomen with dialysate for a period of time determined by your doctor through the peronal membrane waste products and extra fluid are continuously drawn out of your blood into the dialysate along with the waste materials it absorbed the dialysate will drain out of your abdomen into a disposable collection bag during your Exchange