Final answer:
An autoclave is a device used to sterilize medical instruments and does not function as a means to prevent exposure to bloodborne pathogens directly while handling them, unlike other listed items that serve as protective barriers or instruments minimizing direct exposure risks.
Step-by-step explanation:
The term 'bloodborne pathogen engineering control' refers to methods or devices that isolate or remove hazards from the workplace, specifically designed to protect workers from exposure to bloodborne pathogens. An example of a bloodborne pathogen engineering control would be a device that limits the risk of injury or infection when handling potentially infected material.
- Disposable (single use) gloves are a primary protective barrier between a potential source of infection and the worker. They are indeed an example of bloodborne pathogen engineering control.
- An autoclave is used to sterilize medical equipment by applying high-pressure saturated steam, ensuring that any potential bloodborne pathogens are destroyed. While autoclaves do not directly prevent exposure to bloodborne pathogens, they are critical in the reprocessing of medical equipment to make them safe for reuse.
- Self-sheathing needles are designed to prevent needle-stick injuries by automatically sheathing the needle after use and are definitely a bloodborne pathogen engineering control.
- Splash guards are protective barriers that prevent blood or other potentially infectious materials from splattering or contacting workers, which makes them a form of bloodborne pathogen engineering control as well.
Based on these descriptions, the answer to the question would be 'b. An autoclave', as it is not an engineering control aimed at preventing exposure but rather a method for sterilization after potential exposure.