A young student comes to the school nurse and shows the nurse a mosquito bite. As the nurse expects, the bite is elevated and has serous fluid contained in the dermis. How would the nurse classify this lesion?

Answer Explanation: A wheal is a primary skin lesion that is elevated and has fluid contained in the dermis. An example of a wheal would be an insect bite or hives. Vesicles, macules, and nodules are not characterized by elevation and the presence of serous fluid.

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