SN instructed patient that fluid restrictions are usually necessary when dialysis is initiated, especially if dialysis only occurs three days a week and if urine production is decreased. Build up of fluid can lead to shortness of breath, swelling, and high blood pressure. There is a limit to the amount of fluid that can be safely removed during dialysis. If fluid limits are exceeded and extra water must be removed, negative effects such as muscle cramping, low blood pressure leading to nausea, weakness, dizziness, and possibly extra dialysis sessions to remove the fluid.