Final answer:
The statement is true; standard precautions apply to blood, all body fluids, and intact and nonintact skin and mucous membranes to prevent infection.
Step-by-step explanation:
The statement is true. Standard precautions should be applied to blood, all body fluids, secretions, and excretions, as well as intact and nonintact skin and mucous membranes. These precautions are implemented to prevent the spread of infections, particularly in healthcare settings. Healthcare workers need to prevent infection by various pathogens, such as Hepatitis B virus (HBV), by using protective barriers like gloves and face shields, practicing proper hand hygiene, and following correct protocols for disinfection and sterilization of equipment. Standard precautions are a critical part of infection control and serve as the first line of defense against the transmission of infectious agents.