This video shows children what happens when doctors check if your kidneys are healthy using a DMSA scan. You get a small amount of radioactivity in this nuclear medicine test and then you need to wait a few hours before your scan. This video helps children and parents to see the difference between a DMSA and a MAG3 scan. Parents can watch this video themselves or together with their child before the appointment depending on the age and ability of the child. The What? Why? Children in Hospital charity makes videos to help families prepare for tests in hospital.

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