Under the Baker Act, you are entitled to be fully informed as to your rights. I have included two information sources for you, below.
Note that one of the provisions of the Baker Act is that you have the right, under Section 394.459, to question the cause and legality of your detention.
The CCHR Florida Hotline: 800-782-2878
Full Text of the Baker Act legislation: http://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute