After preparing a sterile field, which of the following statements are true?
Select all that apply.
A. Consider the outer 1 inch of sterile field as non-sterile.
B. After applying sterile gloves, keep hands below the waistline.
C. Walk in and out of the room to gather supplies to add to the sterile field.
D. Opened sterile instruments on the sterile field should be considered sterile.
E. Consider all persons in the room sterile once the sterile field has been created.