Which of the following is a proper method for containing a spill of blood or other potentially infectious materials?

Using absorbent barriers to contain a spill of blood or other potentially infectious materials is a proper method because it effectively isolates the hazardous substance, preventing its spread and minimizing exposure to other individuals. Absorbent barriers, such as specialized absorbent pads or materials designed for biohazard cleanup, are specifically created to handle fluids and help maintain a safer environment during the cleanup process.

This method ensures that the infectious material is contained in a controlled manner, allowing for proper removal and disposal according to health and safety guidelines. It also helps in reducing the risk of exposure to potentially infectious pathogens that could pose a health threat. Other cleaning methods, such as utilizing a regular mop or wiping the area with a paper towel, are not suitable because they do not adequately contain the spill and may risk spreading contaminants further. Leaving the spill alone is not a viable option, as it does nothing to address the potential danger posed by the infectious materials.