I implemented a binder program based on a previous thread. Each family member has a colored binder with all their important medical, school and personal information. The file holds business card sleeves for all our specific doctors or attorneys, urgent cares,etc.

This seems a good place to put said consent form and leave the folder on the kitchen table. If the sitter can get to an urgent care, the binder has the biz card from the one the child has already been to. Plus all the childs medical situations. Grab and go.