Thank you for your query 1. GER scan is done for children with symptoms of Gastro Esophageal Reflux A small amount of radioactive tracer will be mixed with milk and given. After the child drinks the mixture imaging is done by a scanner 2. The scanner is open and does not make noise 3. You may be permitted to stay with your baby Usually the time taken is about 1 hour and though it’s sometimes uncomfortable but it’s not painful