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VASCULAR ACCESS
An adequate vascular access should permit blood flow to the dialyser of 150-450ml/min. An arteriovenous fistula enables ready access to the blood circulation for routine dialysis treatment. Optimal blood access and blood flow in the fistula influences dialysis efficiency. Blood reentering the patient by the venous needle may recirculate and thus effectively reduce the volume of nondialysed blood entering the extracorporeal circuit. Some dialysis machines can detect the
degree of recirculation and can thus contribute to improving dialysis therapy.