very interesting. Like I said, from the research I have seen it seems to be about 33% level at the EAC, and the rest at the phleb axis. All seem to use the same numbers/criteria for treatment. As posted before, I asked the AACN via thier website/email. The response I got was that the art line should always be leveled at the phleb axis and those numbers used for CPP calc, though she gave me no reference to research or a formal publication saying such.
I find it shocking that there is such a variation in practice. No one else seems to care By my rough estimations the cpp would be a 14 point different. HUGE! I would love to see a formal document or position of an organization to defend either practice.