Which step is essential to maintain wound sterility during a dressing change?

• A. Prepare a sterile field
• B. Remove old dressing by touching the wound with bare hands
• C. Rinse the wound with cold water after dressing removal
• D. Reuse the old dressing

Answer: (A)

Maintaining a sterile field is essential during a dressing change because it creates a barrier that prevents microorganisms from reaching the wound. By preparing a sterile field, you ensure that all materials you touch—dressings, saline, gauze, and instruments—are uncontaminated and kept on a clean, organized surface. This minimizes the chance that bacteria will be introduced as you remove the old dressing and apply a new one, promoting proper healing and reducing infection risk. Touching the wound with bare hands breaks that barrier and can transfer bacteria directly into the wound or onto the new dressing. Rinsing the wound with cold water after removing the dressing doesn’t address contamination during the change, and reusing the old dressing reintroduces bacteria. Establishing and maintaining a sterile field from the start is the best practice for wound sterility.