This page explains what a contrast extravasation is, how it is treated, and symptoms to watch for. DOWNLOADABLE PDF: Contrast Extravasation.
The amount of fluid a child needs depends on many factors including their age, their gender, the weather and how much physical activity they do, but generally they should aim to drink about 6-8 glasses of fluid per day (on top of the water provided by food in their diet).
Constipation is especially common in children consuming too much fiber and too little water. Water requirements vary by weight and activity level, but most children should consume a minimum of six 8-ounce glasses of water daily, plus an additional 8 ounces for every 30 minutes of exercise or time spent outside.