The nurse explains that the body's normal flora serves as:

Choice A rationale

Washing hands when visibly soiled removes dirt, debris, and pathogens, effectively reducing the risk of infection.

Choice B rationale

Washing hands after using the restroom is a critical practice to prevent the spread of gastrointestinal pathogens.

Choice C rationale

Washing hands before meal preparation prevents the transmission of pathogens to food, protecting against foodborne illnesses.

Choice D rationale

Hands that appear clean may still harbor pathogens. Effective hand hygiene includes washing hands for at least 20 seconds with soap and water to remove invisible pathogens. .

Choice A rationale

Opening the sterile tray by first unfolding the flap furthest from the body is a correct practice to avoid reaching over the sterile field, which helps maintain the sterility of the field.

Choice B rationale

Holding a sterile item just above waist level is appropriate as long as the item remains within the sterile field's boundaries. Keeping items at this level helps prevent accidental contamination from lower surfaces.

Choice C rationale

Placing a sterile dressing 5 cm (2 in) from the border of the sterile field is acceptable, as the border is considered non-sterile, and maintaining this distance helps ensure the sterility of the item within the field.

Choice D rationale

Opening a sterile package directly over the middle of the sterile field can lead to contamination. Any particles or contaminants from the package may fall into the sterile field, compromising its sterility. .