Which of the following is a disadvantage of using cultured skin?

Correct Answer: B

Rationale: The correct answer is B because growing cultured skin is indeed time-consuming. Cultured skin requires a significant amount of time for cells to proliferate and form a suitable skin graft. This process can take several weeks to months, thus delaying treatment for patients in need of immediate skin repair. A: Pigmentation mismatch is not a disadvantage as it can be managed with techniques like pigmentation matching. C: The risk of infection can be minimized through proper sterile techniques during the culturing process. D: The risk of rejection can be reduced by using the patient's own cells to grow the cultured skin, making rejection less likely.

Correct Answer: B

Rationale: The correct answer is B: Warty, irregular papules or plaques. Seborrheic keratosis is a common benign skin growth characterized by warty, raised, and often brown or black lesions. These growths have a stuck-on appearance and may be smooth or rough. They are not associated with white patchy yeast infections (choice A), excessive turnover of epithelial cells (choice C), or deep inflammation of subcutaneous tissue (choice D). The key characteristics of seborrheic keratosis are the warty and irregular nature of the lesions, which differentiate it from other skin conditions.

Correct Answer: A

Rationale: The correct answer is A: Warm oatmeal baths. Oatmeal has soothing properties and helps to soften scales and crusts, making it easier to remove them gently without causing further damage to the skin. The warm temperature of the bath also helps in loosening the scales. B: Warm saline dressings are more suitable for wound cleansing or promoting wound healing, not specifically for debridement of scales and crusts. C: Cool sodium bicarbonate baths may help with itching and inflammation but may not effectively promote the removal of scales and crusts. D: Cool magnesium sulfate dressings are more commonly used for wound healing and managing inflammation, not specifically for debridement of skin lesions.

Correct Answer: D

Rationale: The correct answer is D: Ever-changing. When assessing a suspicious skin lesion, the feature of ever-changing is crucial as it indicates the possibility of malignancy or skin cancer. Skin lesions that evolve or change in size, shape, color, or symptoms over time are concerning and require further evaluation. This feature is important for early detection and prompt treatment of skin cancers. A: Edema is not typically a characteristic feature of a suspicious skin lesion. B: Erythema refers to redness of the skin and is not specific to assessing skin lesions for malignancy. C: Elevation may or may not be present in a suspicious skin lesion and is not as significant as the feature of ever-changing. In summary, the correct answer, D: Ever-changing, is crucial in assessing suspicious skin lesions for possible malignancy, while the other choices are not as indicative of skin cancer.

Correct Answer: A

Rationale: Rationale: 1. Keeping the affected leg elevated helps reduce swelling by promoting venous return. 2. Elevation helps decrease inflammation and discomfort in cellulitis. 3. It aids in preventing further spread of infection. 4. Encouraging ambulation (B) and applying ice (C) can worsen the condition by increasing inflammation and risk of spread. Moisturizing lotion (D) does not address the underlying infection or swelling.