I am writing procedures for Recirculation Studies for patients with fistuals and grafts. Does anyone have these procedures already written and if so could you pass on to me the particulars of how to and any references you might have. My current research shows two different methods on how to do this. The peripheral stick in conjuntion with the A & V lab draws and the other is utilizing the A & V draws only. I have found conflicting data on when to draw the labs as well as the need to slow the dialysis flow rate down. Any additional information concerning these issues would be particulary helpful to me as well. Thank-you for your help!