Which term describes the elimination of all microorganisms and maintenance of a sterile field?

• A. Clean technique
• B. Medical asepsis
• C. Surgical asepsis
• D. Sterile technique

Answer: (D)

Sterile technique is the set of practices that aims to render and keep a field completely free of microorganisms, creating a sterile environment for procedures where infection risk must be minimized. It involves meticulous hand hygiene, using sterile gloves and instruments, sterile drapes, and ensuring that no nonsterile item touches the sterile field. If the sterile field is breached, it must be reestablished to prevent contamination.

This is different from medical asepsis (clean technique), which reduces and controls microorganisms and prevents their spread but does not remove all microbes. Clean technique is used for routine care to maintain a clean environment, not to maintain a truly sterile field. Clean technique is also distinct from sterile technique in the level of sterility it aims to achieve.