A nurse is caring for a 40-year-old female client in an outpatient clinic. Which of the following primary skin lesions contain fluid?

Choice A rationale: Papules are small, raised, solid skin lesions less than 1 cm in diameter. They do not contain fluid; instead, they consist of thickened epidermis or dermal infiltrates. Papules are common in conditions like psoriasis and dermatitis, but their solid nature distinguishes them from fluid-filled lesions. Choice B rationale: Nodules are larger, solid, raised lesions extending deeper into the dermis or subcutaneous tissue, typically more than 1 cm. They do not contain fluid but represent firm tissue masses seen in conditions such as rheumatoid nodules or lipomas. Choice C rationale: Vesicles are small, fluid-filled lesions less than 1 cm in diameter, containing clear serous fluid. They appear as raised, translucent blisters and are characteristic of conditions like herpes simplex virus infection or contact dermatitis, matching the client’s fluid-filled itchy rash. Choice D rationale: Pustules are raised lesions similar to vesicles but filled with purulent material (pus), indicating localized infection or inflammation. They appear white or yellow and are typical in conditions like acne or impetigo, representing a fluid-filled primary lesion. Choice E rationale: Tumors are large solid masses that extend deeper into the dermis or subcutaneous tissues, usually more than 2 cm in diameter. They do not contain fluid and represent neoplasms or benign growths such as lipomas or cysts. Choice F rationale: Wheals are transient, elevated, erythematous, and edematous lesions caused by dermal edema. They do not contain fluid in a cavity but represent swelling in the skin layers, typical of urticaria or allergic reactions. Choice G rationale: Macules are flat, non-palpable skin color changes less than 1 cm in size. They do not contain fluid and are seen in conditions like freckles or petechiae.