Child Safety and Kid's Club Care--MSC Orchestra

I liked Matteo's thread about the kids' programs on the Lirica. It is helpful to parents who have concerns when traveling with children. Please encourage staff on the Orchestra to do the same. :) I have some questions, and our children are between 8 - 17.

Do they all get a room key?

What kind of identification do they get? I read somewhere that they get a bracelet requiring their names. What else is required on the bracelet? What else is on the bracelet?

What happens if a child gets lost either on the ship or at port?

What happens if a child gets sick on the ship and their parent is on an excursion?

How does MSC staff handle if a child needs medication in the kid's club?

Thank you for your help.