Which of the following is an example of universal precautions?

Universal precautions refer to a set of guidelines designed to prevent the transmission of bloodborne pathogens and reduce the risk of spreading infections in healthcare settings. The correct answer involves using environmental controls, such as proper cleaning. This means implementing measures to ensure that surfaces and equipment are sanitized to reduce the possibility of contamination and disease spread.

These controls are critical in environments where individuals might come into contact with bodily fluids or contaminated surfaces, as they create a safer environment for both individuals receiving care and the caregivers themselves. Proper cleaning helps in maintaining hygiene and minimizing the risk of infections, which is central to the concept of universal precautions.

In contrast, the other options focus on different aspects of safety or health but do not specifically adhere to the principles of universal precautions. For example, using seat belts relates to road safety, administering medication is about patient care but does not involve the same level of infection control, and attending a doctor for an annual physical exam is important for overall health maintenance but does not directly relate to universal precautions regarding infection prevention.