When adding sterile liquids to a sterile field, what indicates contamination?

• A. Consider the sterile field contaminated if it becomes wet during the procedure
• B. The sterile field is contaminated when touched by nonsterile objects
• C. A wet field remains sterile
• D. A wet field is never acceptable

Answer: (D)

Moisture on a sterile field signals contamination because sterile areas must stay dry to maintain a true barrier against microbes. When sterile liquids are added, any wetness provides a pathway for microorganisms to move onto the field, compromising sterility. That’s why a wet field is not acceptable and should be treated as contaminated, requiring actions to re-establish a sterile field. While contamination can also occur if a nonsterile object touches the field, moisture specifically undermines the sterile barrier in this scenario, which is the key takeaway.