Which sterilization method uses high-pressure steam and what is a key safety consideration?

• A. Steam sterilization (autoclave): ensure proper packaging and avoid overloading; risk of burns from steam.
• B. Ethylene oxide (ETO): requires aeration to remove toxic gas; risk of chemical exposure if not aerated.
• C. Hydrogen peroxide plasma: low-temperature sterilization suitable for heat-sensitive items; risk of residue or compatibility issues.
• D. Dry heat sterilization: uses dry heat; longer cycles and potential instrument damage.

Answer: (A)

High-pressure steam autoclave sterilization uses saturated steam under pressure to penetrate wrapped items and destroy microorganisms. A key safety consideration is how you load and handle the load: packaging must be appropriate and not overly crowded so steam can reach all surfaces, ensuring effective sterilization. Overloading or improper packaging can create cold spots and compromise sterility. Because the steam and surfaces are extremely hot, there is also a burn risk when opening the door or handling trays after the cycle, so use proper heat-resistant PPE and follow correct depressurization and cooling steps before removal. Ethylene oxide, hydrogen peroxide plasma, and dry heat do not use high-pressure steam and have different safety concerns—gas toxicology with aeration, residue or material compatibility issues, and long dry cycles with potential instrument damage, respectively.