A nurse is completing a performance evaluation for an assistive personnel (AP). Which of the following actions by the AP requires intervention by the nurse?

The AP uses alcohol hand antiseptic after caring for a client who has Clostridium difficile.

The AP wears a mask when caring for a client who has varicella.

The AP closes the door of a client who is on airborne precautions.

The AP removes cut flowers from the room of a client who is in a protective environment.