A 40 y.o. male patient is undergoing hemodialysis with an internal AV fistula in place. What do you do to prevent complications associated with this device?

A. Insert I.V. lines above the fistula.

B. Palpate pulses above the fistula.

C. Report a bruit or thrill over the fistula to the doctor.

D. Avoid taking blood pressures in the arm with the fistula.