During the skin assessment of a client, the nurse observes a skin lesion that is elevated, round, and filled with serum. Identify the type of lesion.

Choice A rationale

Percutaneous absorption of topical corticosteroids increases systemic exposure, potentially causing side effects like adrenal suppression, hyperglycemia, and Cushing's syndrome. This is particularly significant when potent corticosteroids are applied to large body areas or under occlusive dressings, enhancing absorption and systemic effects.

Choice B rationale

Topical corticosteroids primarily induce vasoconstriction, not vasodilation, reducing inflammation and redness in skin conditions. Incorrect understanding of their vasodilatory effects may misguide nursing interventions, making it less relevant to the injury risk in atopic dermatitis treatments.

Choice C rationale

Topical corticosteroids have minimal systemic interactions compared to oral or intravenous forms, making drug interaction concerns less pertinent. The risk of significant drug interactions is low unless the medication is systemically absorbed in substantial amounts.

Choice D rationale

Application to face, neck, and intertriginous sites increases the risk of local side effects like skin atrophy, but is not a primary concern for systemic injury risk. These areas have thinner skin, enhancing absorption and risk of local adverse effects, but not necessarily systemic harm.

Choice A rationale

A papule is a small, raised, solid pimple or swelling on the skin, often forming part of a rash. It does not typically contain pus and is not associated with impetigo, which is characterized by pustules.

Choice B rationale

A vesicle is a small fluid-filled blister on the skin, usually containing clear fluid. Impetigo typically presents with pustules rather than vesicles.

Choice C rationale

A wheal is a raised, itchy area of skin that is often a sign of an allergic reaction. It is not characteristic of impetigo, which involves pustules.

Choice D rationale

Impetigo is a highly contagious bacterial skin infection that usually presents with pustules, which are raised lesions containing pus. These pustules can rupture and form a yellowish crust, which is a hallmark of impetigo.