Final answer:
The most commonly used disinfectant to clean nondisposable equipment and processing areas contaminated with blood and/or body fluids is a 1:10 dilution of household bleach. Other options can be used in certain situations, but bleach is the most commonly used and recommended disinfectant.
Step-by-step explanation:
The most commonly used disinfectant to clean nondisposable equipment and processing areas contaminated with blood and/or body fluids is a 1:10 dilution of household bleach. This dilution of bleach is effective in killing a wide range of pathogens and is commonly recommended by organizations such as the CDC for sanitizing surfaces.
Other options mentioned in the question, such as iodophors, 70% isopropyl alcohol, and quaternary ammonium compounds, can also be used as disinfectants in certain situations. However, a 1:10 dilution of household bleach is the most commonly used and recommended disinfectant for cleaning non-disposable equipment and processing areas contaminated with blood and/or body fluids.