A Nurse Cares for a Client Who Is Prescribed a Serum

A nurse cares for a client who is prescribed a serum catecholamine test.Which action should the nurse take when obtaining the sample?

A) Discard the first sample and then begin the collection.
B) Draw the blood sample after the client eats breakfast.
C) Place the sample on ice and send to the laboratory immediately.
D) Add preservatives before sending the sample to the laboratory.