An advance directive tells your doctor what kind of care you would like to have if you become unable to make medical decisions (if you are in a coma, for example). If you are admitted to the hospital, the hospital staff will probably talk to you about advance directives.
A good advance directive describes the kind of treatment you would want depending on how sick you are. For example, the directives would describe what kind of care you want if you have an illness that you are unlikely to recover from, or if you are permanently unconscious. Advance directives usually tell your doctor that you don’t want certain kinds of treatment. However, they can also say that you want a certain treatment no matter how ill you are.
Advance directives can take many forms. Laws about advance directives are different in each state. You should be aware of the laws in your state.