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fistulas and grafts

which veins does not have an accompanying artery in the upper ext? cephalic and basilic
What is a lowest vein diameter suitable for AV Fistula? 2.5mm
when can a graft be used? when fistulas have failed and veins are inadequate
T/F Fistulas are created in the non-dominate arm TRUE
Which graft is impenetrable by ultrasound? Vectra
what is the diameter for the arterial for it to be used 2.0mm
What is the diameter for a vein when using a graft? 4mm
High resistant waveform in an artery prox to a graft/fistula is Normal. yes/no NO! high resistance is a sign of graft occlusion or stenosis
Digital ischemia is caused by what type of condition? radial artery steal
With a graft, where is the most common site of stenosis caused by intimal hyperplasia? Prox to the anastomosis
"Normal" grafts/fisulas have low/high velocities and low/high resistance High velocities 100-400, Low resistance
High resistance distal to the anastomosis site is Normal? y/n Yes- Flow should be antegrade and high res.
Elevated right side heart pressure is a complication of a graft and fistula? y/n yes- along w stenosis, thrombosis, steal, aneurysms, and infection
Created by: amandarose01