The Packard Children’s Hospital has a wonderful site for kids which I’ve entitled Hospital Connection.
It’s animated with text and audio support (be sure to click on the closed-captioning “on”), and helps children understand how to get ready to go to the hospital and what happens once they’re there.
There are lots of games and opportunities for vocabulary development. It’s very accessible to English Language Learners at all levels.
I’ve placed the link on my English For Beginners page under Health.