This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Your patient with chronic renal failure reports pruritus. Which instruction should you include in this patient’s teaching plan? \nSelect and explain. \nA. Rub the skin vigorously with a towel, B. Take frequent baths, C. Apply alcohol-based emollients to the skin, D. Keep fingernails short and clean', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Calcium-phosphate deposits in the skin may cause pruritus. \nScratching leads to excoriation and breaks in the skin that increase the patient’s risk of infection.\nKeeping fingernails short and clean helps reduce the risk of infection.', 'role': 'assistant'}]