In some cases, the examination time is too long to permit the child to try to hold still without sedation. This may be determined in advance or, can be ordered by the radiologist after your child is in the department. Sedation is only given by a sedation-qualified physician and/or nurse.
While the amount and type of sedation is determined upon arrival by your childs size/weight and age, there are general guidelines for preparation.
Download more information about sedation here.