When Caring for a Client with an Implanted Port, What

When caring for a client with an implanted port, what action does the nurse take?

A) Changes the noncoring needle and dressing every 7 days
B) Uses only heparin to flush the port after an infusion is complete
C) Accesses the port and flushes it with normal saline daily
D) Flushes the port every 2 weeks if not being used