The Royal Children's Hospital Melbourne has videos that show children having some of these diagnostic tests. It also has some tips for parents to reduce their child's discomfort during the tests. There is also a section on medical imaging, including photos.
Lab Tests Online also has tips to help children prepare for the tests.
The Australian Radiation Protection and Nuclear Safety Agency has fact sheets on CT imaging and children, and what parents should know about CT scans.
You can find links to further support and advice at our Find support and more information page.