The heart and blood vessels comprise the two elements of the cardiovascular system that work together in providing nourishment and oxygen to the organs of the body. The activity of these two elements is also coordinated in the body's response to stress.
graft vs fistula. A graft is usually in a horse-shoe or letter C shape, and is normally firmer to the touch. Fistulas usually run up and down and are more squiggly shaped, with bumps (pseudo anurisms) and softer to the touch. Here are some good pics of fistulas. For some reason, I could not find any pics of grafts on the net.
If a graft has been inserted, extra care must be taken to prevent infection. A graft might also require more recovery time, sometimes as long as four to six weeks, before it can be used as a source of dialysis access. While the graft heals, a catheter will be used for dialysis access. The doctor will check for infection and provide directions about caring for the AV fistula.