A nurse is preparing a sterile field.
Which of the following actions should the nurse identify as contaminating the field?

Opening the sterile tray by first unfolding the flap furthest from his body.

Holding a sterile item at just above waist level.

Placing a sterile dressing 5 cm (2 in) from the border of the sterile field.

Opening a sterile package directly over the middle of the sterile field.

Answer and Explanation

The Correct Answer is D

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. .

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Correct Answer is C

Explanation

Choice A rationale

Gown, gloves, and a mask are important, but goggles or glasses provide additional protection against splashes, which are common in patients with diarrhea and vomiting.

Choice B rationale

Reusable gowns are generally not recommended in situations where contamination is likely, as they can harbor pathogens even after laundering. Disposable PPE is preferable.

Choice C rationale

Gown, gloves, and goggles (or glasses) offer comprehensive protection. Goggles or glasses shield the eyes from potential splashes, reducing the risk of transmission of infectious agents.

Choice D rationale

Shoe covers are not typically necessary unless there is a risk of floor contamination. The primary focus should be on protecting the areas most likely to be exposed to body fluids, such as the hands, body, and face.

A. Vector. B. Fomite. C. Prions. D. Interferon.

Correct Answer is B

Explanation

Choice A rationale

Vectors are living organisms, such as mosquitoes, that transmit pathogens between humans or from animals to humans. An inanimate object like a glass is not a vector.

Choice B rationale

Fomites are inanimate objects that can carry and transmit pathogens, such as a glass, door handles, or medical instruments.

Choice C rationale

Prions are infectious proteins that cause neurodegenerative diseases, not inanimate objects that transmit infection.

Choice D rationale

Interferons are proteins produced by cells in response to viral infections and do not relate to the transmission of pathogens via inanimate objects. .

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A nurse is preparing a sterile field. Which of the following actions should the nurse identify as contaminating the field?

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A nurse is preparing a sterile field.
Which of the following actions should the nurse identify as contaminating the field?