A group of teenagers spent an entire day on the beach without using sunscreen. The first night, their skin was reddened and painful to touch
The second day, they awoke to find large fluid-filled blisters over several body areas. The nurse recognizes the development of blisters as which type of inflammatory response?
A) Cellular response
B) Immediate transient response
C) Continuous response
D) Delayed response
Ans: D
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The first pattern is an immediate transient response, which occurs with minor injury. It develops rapidly after injury and is usually reversible and of short duration (15 to 30 minutes). The second pattern is an immediate sustained response. The third pattern is a delayed response, in which the increased permeability begins after a delay of 2 to 12 hours, lasts for several hours or even days, and involves venules as well as capillaries. A delayed response often accompanies injuries due to radiation, such as sunburn. The cellular stage of acute inflammation is marked by changes in the endothelial cells lining the vasculature and movement of phagocytic leukocytes into the area of injury or infection.
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