The description you gave of the situation is extremely vague, which is probably a good thing because I'm guessing there is a lot of very sensitive, personal information here that you really shouldn't discuss in a public forum. But without a lot more information it's not possible to say whether you have a good case. I don't think you'll have much of a case based on being tricked into going to the ER; however there may well be things that the school has done in this situation that merit a lawsuit. You should set up a consultation with an attorney as soon as possible to determine your best course of action. Good luck.
Speak with a local education lawyer in person. Do not post sensitive information on line in public non confidential forum.
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