There are several reasons that cause Chronic Kidney Disease (CKD) patients to experience excessive bleeding after completing their dialysis treatment. Many worry about how to stop excessive bleeding without doing lasting damage to the fistula. In this case you should apply direct pressure to the exact place that is bleeding.
The only time you should apply pressure outside of the exact place that is bleeding is when you have lost sight of it, due to large quantities of blood. Press down on the arterial end of the fistula, which is usually the end closer to the hand. This will block the flow of blood enough to remove the gauze and excess blood from the bleeding site so you can see where to apply pressure. Once you have put pressure on the correct spot, you should remove your finger from the arterial end. Putting too much pressure on too wide of an area of the fistula can be detrimental to the health of the fistula. That is why you should avoid carrying heavy objects, even purses, with your fistula arm, and that is also why you should only be applying pressure to the bleeding site.
KidneyBuzz.com highly recommends that, if you are alone and bleeding does not stop after applying direct pressure, immediately call 911. Otherwise, if after 30 minutes of applying pressure the site keeps bleeding after you release pressure and reapply pressure then you should have someone drive you to the ER, or call 911.