The Nurse Is Preparing a Patient to Undergo a Dexamethasone

The nurse is preparing a patient to undergo a dexamethasone suppression test.Which action is most appropriate?

A) Instruct the patient to be NPO 6 hours before the test.
B) Instruct the patient that urine levels will be assessed after a 24-hour collection period.
C) Administer a steroid the morning of the test.
D) Instruct the patient that a blood specimen will be collected in the morning.