Aseptic Technique and Sterilization Flashcards

Which sterilization method is most appropriate for heat-sensitive endoscopic equipment?

Answer: Ethylene oxide (EO) gas sterilization

Ethylene oxide gas sterilization operates at low temperatures, making it ideal for heat-sensitive instruments like endoscopes.

When a sterile field becomes wet, what is the correct course of action?

Answer: Consider it contaminated and replace the draping

Strike-through contamination occurs when moisture creates a pathway for microorganisms, so any wet sterile field must be considered contaminated.

What is the minimum safe distance a non-scrubbed person should maintain from the sterile field?

Answer: 12 inches

Non-scrubbed personnel must remain at least 12 inches from the sterile field to prevent contamination.

Which Spaulding classification category applies to surgical instruments that penetrate sterile tissue?

Answer: Critical

Critical items penetrate sterile tissue or the vascular system and require sterilization, the highest level of microbial destruction.

How should a sterile gown be considered if it becomes torn during a procedure?

Answer: Change gown immediately as it is contaminated

Any breach in gown integrity compromises the sterile barrier; the gown must be changed immediately.

Biological indicators (BIs) used to monitor steam sterilization contain spores of which organism?

Answer: Geobacillus stearothermophilus

Geobacillus stearothermophilus spores are highly resistant to steam and are the standard BI for monitoring steam sterilization efficacy.

During a procedure, a scrubbed team member's glove is punctured. What is the immediate priority?

Answer: Notify the surgeon and change gloves promptly

A punctured glove must be changed promptly after notifying the surgeon to maintain aseptic technique and patient safety.