The physician suspects a client has a dermatological infection. Which of the following diagnostics will be ordered to observe color changes to the skin using an ultraviolet light source?

Choice A Reason: This is incorrect because a blister-like pustule on the face that oozes clear fluid may indicate impetigo, which is a bacterial skin infection, not basal cell carcinoma. Basal cell carcinoma is a type of skin cancer that arises from the basal layer of the epidermis, which is the outermost layer of the skin. Basal cell carcinoma lesions are usually not blistered or pustular, but rather smooth, shiny, or waxy.

Choice B Reason: This is incorrect because a dark brown lesion that is flat may indicate a mole, which is a benign growth of melanocytes, which are cells that produce pigment, not basal cell carcinoma. Basal cell carcinoma lesions are usually not dark brown or flat, but rather flesh-colored, pink, or red, and may have a raised or indented center.

Choice C Reason: This is correct because a small scaly, dry lesion on the elbow may indicate basal cell carcinoma. Basal cell carcinoma lesions are often small, scaly, and dry, and may bleed or crust over. They can occur anywhere on the body, but are more common on areas that are exposed to the sun, such as the face, neck, arms, or legs.

Choice D Reason: This is incorrect because location on the top of the head where exposed frequently to sunlight may indicate squamous cell carcinoma, which is another type of skin cancer that arises from the squamous layer of the epidermis, not basal cell carcinoma. Squamous cell carcinoma lesions are usually rough, scaly, or crusted, and may have a firm or hard texture. They can also occur anywhere on the body, but are more common on areas that are exposed to the sun.

Choice A Reason: This is incorrect because turning off the lights and TV and closing the door may increase the client's anxiety and confusion. The nurse should provide adequate lighting and familiar objects to help orient the client.

Choice B Reason: This is incorrect because using restraints may increase the risk of injury, infection, and psychological distress for the client. The nurse should use restraints only as a last resort and with a physician's order.

Choice C Reason: This is incorrect because asking for a sedative may not address the underlying cause of the agitation. The nurse should use non-pharmacological interventions first, such as calming music, massage, or aromatherapy.

Choice D Reason: This is correct because identifying the cause of the agitation may help resolve it. The nurse should assess for possible triggers, such as pain, hunger, thirst, infection, or environmental factors.