A 28-year-old male is a patient at your clinic.
He states that he had a minor accident with his motorcycle 5 days ago.
He sustained several scrapes and wounds.
The wound on his calf has a pinkish-red center area that looks bumpy.
This indicates that the wound is:

Choice A rationale:

Strengthening the wall of the wound is not the primary function of vacuum-assisted closure. The main function is to promote wound healing by applying negative pressure.

Choice B rationale:

Drawing the wound edges together by negative pressure is the correct answer. Vacuum-assisted closure, also known as negative pressure wound therapy, works by applying negative pressure to the wound, which helps to draw the edges of the wound together and promote healing.

Choice C rationale:

Making an air occlusive cover for the wound is not the primary function of vacuum-assisted closure. The main function is to promote wound healing by applying negative pressure.

Choice D rationale:

Interrupting the proliferation of bacteria in the wound is not the primary function of vacuum-assisted closure. The main function is to promote wound healing by applying negative pressure.

Choice A rationale:

Restlessness, rising pulse, and falling blood pressure are classic signs of shock, which can occur with internal hemorrhage.

Choice B rationale:

Lethargy, falling pulse, and rising blood pressure are not typically associated with internal hemorrhage.

Choice C rationale:

Headache, rising pulse, and falling blood pressure could be signs of many conditions, but they are not specific to internal hemorrhage.

Choice D rationale:

Restlessness, falling pulse, and rising blood pressure are not typically associated with internal hemorrhage.