Mugen
They might be keeping you in case of infections or something. It sounds like you got hurt pretty badly, and I'm sure there's a good reason you haven't just gotten up and walked out yourself.
Mugen, if I check you out where are you going to stay? You don't have anyone to watch over you.
Kriff it, I'm on my way to Japan. You better tell me how to say "I need to check someone out of the hospital" in Japanese.