Which statement best distinguishes medical asepsis from surgical asepsis?

• A. Medical asepsis eliminates all microorganisms using sterile techniques.
• B. Surgical asepsis reduces microorganisms using clean techniques.
• C. Two terms refer to the same practice.
• D. Medical asepsis reduces microorganisms using clean techniques; surgical asepsis eliminates all microorganisms using sterile techniques and sterile fields during invasive procedures.

Answer: (D)

Medical asepsis uses clean technique to reduce the number of microorganisms in the environment and on people, but it does not aim for complete sterility. Surgical asepsis, on the other hand, uses sterile technique to eliminate all microorganisms and to maintain a sterile field during invasive procedures, so instruments, dressings, and the procedure area remain free of viable microbes.

That’s why this statement is the best: it clearly defines both approaches—reducing microorganisms with clean techniques for medical asepsis, and achieving complete sterility with sterile techniques and a sterile field for surgical asepsis during invasive care. The other options either suggest that medical asepsis removes all microbes or that surgical asepsis is just a cleaner version of ordinary technique, which isn’t accurate, or imply they’re the same thing.