When a Patient Is on IV Therapy and the Venipuncture

When a patient is on IV therapy and the venipuncture must occur in the arm with the IV line, the:

A) nurse should hold the arm up with the IV line as the phlebotomist performs the venipuncture
B) nurse should shut off the IV for 2 minutes prior to the venipuncture
C) the tourniquet should be placed above the IV site
D) nurse should hold the arm completely down as the phlebotomist performs the venipuncture