Can anyone tell me if there is a correlation between a lower access flow (done on 2008K machine) and elevated arterial pressure. IE if the second access flow was taken, within a week, and it dropped, could that reading be due to a poor stick where the needle was pressing on the vessel thereby making the AP go from normal of around 180 190 to 240's? Had someone ask me and I do not know. Am not a dialysis nurse. Thanks.