Which sequence best outlines maintaining a sterile field during arthroplasty?

• A. Preoperative sterilization and scrub, sterile draping, proper gowning/gloving, sterile instrument handling, minimize field contamination, and maintain a clearly defined sterile boundary
• B. Draping first, then scrubbing
• C. Gowns are optional in clean rooms
• D. Sterility is ensured by using hand sanitizer only

Answer: (A)

Maintaining a sterile field means creating and protecting a clean, clearly defined work area that remains free from microorganisms throughout the arthroplasty procedure. This starts with thorough preoperative skin preparation and hand/arm scrubbing to remove transient flora and reduce resident flora. Then proper gowning and gloving establish a sterile barrier for the surgical team. Sterile draping around the operative site defines the sterile field and physically isolates it from non-sterile areas. Throughout the case, only sterile instruments and supplies stay within this field, and all handling uses aseptic technique to prevent contamination. Ongoing vigilance and controlled movements help minimize any breach of sterility, preserving the boundary between sterile and non-sterile zones.

Starting with draping before scrubbing can contaminate the field, as the hands may introduce organisms onto the drapes. Believing gowns are optional in clean environments ignores the essential sterile barrier they provide. Relying on hand sanitizer alone does not establish or maintain the sterile barrier and cannot replace proper aseptic technique and sterile barriers.