رضيع عنده إسهال وقيء. ما أدق مؤشر لتقييم الجفاف وتحسنه؟

An infant has vomiting and diarrhoea. What is the most accurate indicator of dehydration and its improvement?

1. Counting wet nappies only
2. Measuring head circumference daily
3. Daily weight, same scale, same time
4. Noting the colour of the stool

Answer: C) Daily weight, same scale, same time. Acute weight change reflects fluid loss accurately; about 1 kg equals 1 litre of fluid.