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?

Option A: In an infant, signs of fluid volume deficit (dehydration) include sunken fontanels, increased pulse rate, and decreased blood pressure. Options B  and C: These options are the opposite of the symptoms in a fluid volume deficit. Option D: This is not a symptom of fluid volume deficit.