Which of the following is a precaution to prevent exposure to a victim's body fluids?

Using personal protective equipment (PPE) is a fundamental precaution to prevent exposure to a victim's body fluids. PPE serves as a barrier between you and potentially infectious materials, which can include blood, saliva, or other bodily fluids. By wearing gloves, masks, goggles, or gowns, you significantly reduce the risk of transmission of diseases such as HIV, hepatitis, and other infections that can be spread through contact with body fluids.

The other choices do not prioritize safety. Applying first aid without gloves exposes you to direct contact with any bodily fluids, which undermines the purpose of taking protective measures. Using bare hands to check wounds also increases your risk of infection and does not offer any protection against exposure to pathogens. Sharing tools with others may lead to cross-contamination, further increasing the risk of spreading infections. Thus, using personal protective equipment is essential in ensuring both your safety and that of the victim during emergency situations.