Final answer:
The contraindicated action when setting up a sterile field is opening sterile packages away from the field. Other practices mentioned are part of the aseptic technique to prevent contamination.
Step-by-step explanation:
In the context of setting up a sterile field for a dressing change by a Patient Care Technician (PCT), the action that is contraindicated is B) Opening sterile packages away from the field. This is because any sterile items intended for use within a sterile field should be opened in such a way that their contents do not have to travel over a non-sterile surface to enter the sterile field, which would increase the risk of contamination. All procedures must adhere to stringent aseptic technique protocols to prevent the introduction of potential pathogens that could cause sepsis.
Other options such as A) Wearing sterile gloves during the procedure, C) Keeping the sterile field within the line of sight, and D) Using sterile forceps to handle sterile items, are all considered best practices for maintaining asepsis and avoiding contamination during medical procedures.