Which of the following statements should the nurse make? 'Diaper dermatitis:'

The correct answer is D: "Diaper dermatitis responds to prompt treatment." This statement is correct because diaper dermatitis, also known as diaper rash, typically improves with appropriate treatment like keeping the area clean and dry, using barrier creams, and changing diapers frequently. Immediate assessment by a medical provider is not always necessary unless the rash is severe or not improving with home care (A). Diaper dermatitis is not always associated with an infection; it can also be caused by irritation from wetness and friction (B). It usually does not cause significant long-term impacts if managed properly (C). Therefore, option D is the most appropriate choice.