Access definition: the access and needle gauge. The
access should be identified as fistula, graft or catheter.
Grafts and fistulas must be associated with a needle
gauge for calculations to be made.
Alert: Three consecutive values above the threshold
(0.55).
Complete measurement set: a blood flow (Qb), venous
pressure and blood pressure associated with a time
stamp, where all values are in range.
(Qb>200, VP>20, MAP>65)