A Client Has a PICC Line in the Right Cephalic

A client has a PICC line in the right cephalic vein. What action by the student nurse requires the faculty to intervene?

A) Uses the double-lumen PICC to administer two incompatible medications simultaneously.
B) Collects a peripheral venous blood specimen from the left arm.
C) Takes blood pressures on the right arm.
D) Measures the circumference of the client's arm above and below the antecubital fossa with dressing changes.