Wearing gloves when there is risk of contact with blood or body fluids is part of:

Wearing gloves whenever there is a risk of contact with blood or body fluids is part of standard precautions — the practice of treating all clients' blood and body fluids as potentially infectious. Gloves create a protective barrier, and they should be changed between clients and when contaminated. This applies in nail and skin services where minor nicks or fluid contact can occur. Following standard precautions, including appropriate glove use, is a core infection-control concept emphasized across all service areas on the exam.