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: Surgery
[{'content': 'Parents bring their infant to the clinic, seeking treatment for vomiting and diarrhoea that has lasted for 2 days. On assessment, the nurse in charge detects dry mucous membranes and lethargy. What other findings suggest a fluid volume deficit? \nSelect and explain. \nA. A sunken fontanel, B. Decreased pulse rate, C. Increased blood pressure, D. Low urine specific gravity', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Option A:\xa0In an infant, signs of\xa0fluid volume deficit\xa0(dehydration) include sunken\xa0fontanels, increased\xa0pulse rate, and decreased\xa0blood pressure.\nOptions B\xa0 and C:\xa0These options are the opposite of the symptoms in\xa0a fluid volume deficit.\nOption D:\xa0This is not a symptom of\xa0fluid volume deficit.', 'role': 'assistant'}]