What is a key risk when steam sterilization loads are overloaded?

• A. Increased risk of chemical exposure from aeration.
• B. Inadequate sterilization due to poor steam penetration when the load is overloaded.
• C. Increased risk of residue on items.
• D. No safety risk.

Answer: (B)

The main idea is that effective steam sterilization depends on steam circulating freely and penetrating all surfaces of every item in the load for the required time at the correct temperature. When the load is overloaded, air pockets and dense packing block steam flow, creating zones that don’t get properly exposed. Those areas remain inadequately sterilized, so microorganisms can survive. That’s why the primary risk is incomplete sterilization due to poor steam penetration. The other options don’t fit as the main issue: chemical exposure from aeration isn’t the central concern with overload, residue on items isn’t the typical consequence of a packed load, and saying there’s no safety risk isn’t accurate since incomplete sterilization directly endangers patients.