Which items would require high-level disinfectants due to their potential to cause blood exposure?

High-level disinfectants are required for items that have a significant risk of coming into contact with blood or other potentially infectious materials. Razors, cuticle nippers, and shears are instruments that can easily penetrate the skin or be used in a manner that might lead to blood exposure. These tools are commonly used in personal grooming and beauty services, where there is a heightened risk of cutting or nicking the skin, thereby necessitating the use of high-level disinfectants to ensure effective sanitation and prevent the transmission of bloodborne pathogens.

The other items listed wouldn't necessarily require the same level of disinfection primarily because they are less likely to come in direct contact with blood. For example, scissors and combs may have surface contact, but they do not inherently carry the same risk of causing cuts or breaks in the skin as the sharper implements in the correct choice. Hair brushes and clips, as well as nail files and tweezers, are generally used in ways that are less likely to result in blood exposure. Hence, high-level disinfectants are particularly critical for the items that pose a greater risk during their use in personal care and grooming procedures.