Final answer:
Standard precautions expanded on universal precautions by broadening the scope of precautions to include all patients, not just those with known infectious conditions. The concept of standard precautions was introduced in the 1990s and emphasized the use of personal protective equipment (PPE) to protect healthcare workers and patients.
Step-by-step explanation:
Standard precautions expanded on universal precautions by broadening the scope of precautions to include all patients, not just those with known infectious conditions. Universal precautions were initially introduced in the 1980s to protect healthcare workers from bloodborne pathogens such as HIV and hepatitis. These precautions involved treating all blood and certain bodily fluids as potentially infectious.
However, in the 1990s, the concept of standard precautions was introduced, which expanded the scope to include additional body fluids and non-intact skin. Standard precautions also emphasize the use of personal protective equipment (PPE) such as gloves, masks, and gowns to protect both healthcare workers and patients.