Final answer:
Extra linen brought into a patient's room and not used is considered contaminated and poses a risk of cross-contamination if stored or used elsewhere.
Step-by-step explanation:
If you bring extra linen into a patient's room and it is not used, it is considered contaminated. According to infection control protocols, once linen has been brought into a patient's environment, it is treated as though it could potentially be contaminated with pathogens. This means it should not be used for another patient or stored for future use without first being properly laundered, even if it seems clean and untouched. Therefore, the extra linen cannot be sorted in the person's closet, placed in the bedside stand, or used for the person's roommate because doing so poses a risk of cross-contamination.