Which of the following is part of universal precautions?

Using disposable sheaths on thermometers is a key component of universal precautions, which are guidelines designed to prevent the transmission of infectious diseases. The purpose of these precautions is to treat all bodily fluids as if they are potentially infectious, thereby minimizing the risk of exposure to pathogens. By using disposable sheaths on thermometers, you ensure that any contamination from one use does not transfer to another person, which aligns with the principles of reducing infection risks.

Universal precautions emphasize the importance of hygiene and proper use of protective equipment, such as gloves, which should be used and disposed of after each patient interaction. This practice is essential in maintaining health and safety standards in environments where there may be exposure to bodily fluids. Other incorrect options involve practices that would potentially increase the risk of infection, such as sharing personal hygiene items or reusing gloves.