During sample preparation, sterile wipes are used at various stages: - Cleaning Work Surfaces: Before and after working with tissue samples, surfaces are cleaned to remove any potential contaminants. - Instrument Sterilization: Instruments such as microtomes and forceps are wiped down to ensure they do not introduce any microorganisms. - Hand Cleaning: Technicians often use sterile wipes to clean their hands, especially when gloves are not worn, to prevent contamination.