A Nurse Is Preparing to Administer Chemotherapy to a Child

A nurse is preparing to administer chemotherapy to a child who has an Infuse-a-Port.Which action by the nurse is the most appropriate?

A) Flush the catheter with normal saline and heparin.
B) Obtain a Huber needle prior to administration.
C) Unclamp the catheter prior to flushing the line.
D) Wrap the catheter in gauze so it doesn't pull out.