Upon Inspection of a Client's Peripheral I

Upon inspection of a client's peripheral I.V. site, a nurse notes 3+ phlebitis of the client's vein. Which action by the nurse is most appropriate?

A) Watch the site and document observations.
B) Discontinue the cannula and apply cold to the site initially for approximately 30 to 45 minutes.
C) Elevate extremity slightly.
D) Apply warm compresses after 30 to 45 minutes.