Which of the following is an example of an aseptic technique?

The correct answer highlights proper hand washing as an essential aseptic technique. Aseptic techniques are aimed at preventing contamination and spreading infections, particularly in environments like medical and esthetics practices. Proper hand washing effectively removes dirt, pathogens, and other contaminants from the hands, significantly reducing the risk of transferring harmful microorganisms to surfaces, tools, or clients during procedures. This practice is foundational in maintaining a sterile environment and ensuring client safety.

While using disposable tools, wearing gloves, and cleaning surfaces with disinfectants like bleach are also important practices that contribute to overall hygiene and safety, they complement hand washing rather than replace it. Hand washing is the first line of defense against infection and is crucial before any procedure or use of equipment. Therefore, emphasizing proper hand washing as an example of aseptic technique is critical in understanding infection control in practice settings.