What is a universal precaution when handling blood?

The principle of treating human blood as potentially infectious is a cornerstone of universal precautions. This approach is based on the understanding that any human blood can carry pathogens, including those that can cause serious diseases such as HIV, hepatitis B, and hepatitis C. By assuming that all blood is infectious, individuals are better prepared to protect themselves and others from exposure to these harmful microorganisms.

This practice is critical not only in healthcare settings but also in any situation where blood is present, ensuring consistent and safe handling procedures. By implementing this precaution, it helps reduce the risk of transmission of infections, safeguarding the health of maintenance partners and others who may come into contact with blood.

The other options do not align with best practices for safety when handling blood, as assuming blood is non-infectious, wearing only gloves, or using minimal protective equipment could significantly increase the risk of exposure to infectious agents.