The nurse clarifies that a vacuum-assisted closure supports healing of a wound by:

Choice A rationale:

Hydrocolloids are not a form of mechanical debridement. They are dressings that promote autolytic debridement by maintaining a moist wound environment.

Choice B rationale:

Transparent dressings are not a form of mechanical debridement. They are used to protect the wound and allow for visual inspection.

Choice C rationale:

Pulsating lavage is a form of mechanical debridement. It involves using a pressurized, pulsed solution to remove necrotic tissue from the wound bed.

Choice D rationale:

Topical enzyme solutions are not a form of mechanical debridement. They are a form of chemical debridement that breaks down necrotic tissue.

E.

Choice A rationale:

A BMI of 20 is within the normal range (18.5-24.9), so it does not increase the risk of a pressure injury.

Choice B rationale:

Peripheral neuropathy can lead to a loss of sensation, which increases the risk of a pressure injury as the individual may not feel discomfort or recognize the need to reposition.

Choice C rationale:

Immobility is a major risk factor for pressure injuries as it increases pressure on certain areas of the body, reducing blood flow and leading to tissue damage.

Choice D rationale:

Hypoperfusion, or reduced blood flow, can lead to tissue hypoxia and increase the risk of pressure injuries.

Choice E rationale:

A prealbumin level of 16 mg/dL is at the lower end of the normal range (15-36 mg/dL)2. Low prealbumin levels can indicate poor nutritional status, which is a risk factor for pressure injuries.