At the site of a bite or sting, the wheal appears as which of the following?

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Multiple Choice

At the site of a bite or sting, the wheal appears as which of the following?

Explanation:
A wheal from a bite or sting is a raised, well-defined area of swelling on the skin. It forms when histamine and other mediators cause fluid to leak into the superficial skin layers, creating a localized, itchy bump that is clearly demarcated. This contrasts with a broad red, blotchy patch (which isn’t raised), a depressed indentation (which would be an excavation, not swelling), or pustules (which are pus-filled). So the defining feature is the raised, well-defined nature of the lesion.

A wheal from a bite or sting is a raised, well-defined area of swelling on the skin. It forms when histamine and other mediators cause fluid to leak into the superficial skin layers, creating a localized, itchy bump that is clearly demarcated. This contrasts with a broad red, blotchy patch (which isn’t raised), a depressed indentation (which would be an excavation, not swelling), or pustules (which are pus-filled). So the defining feature is the raised, well-defined nature of the lesion.

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