I assume this is all related to what you post in your statuses? I never speak of patients or specifics, nor do I speak of my place of employment negatively, so this is not what concerns me. But it brings another thought to consider.
My question is, can an employer fire you based on your lifestyle? For instance, let's say you've "Liked" the place of employment, and now they can see all of your stuff. That include pictures you're tagged in at parties you've gone to, things your friends have written on your wall, etc.
Could something like "party pictures" be enough for an employer to fire you? (I'm not talking illegal drugs, nudity, or committing crimes.) I could see them doing it and saying, "You are not the type of person we want representing our facility." However, if you are not violating HIPPA or mentioning anything about work other than the occasional "Had a rewarding day!" or "Busy day - Glad to be home!" I don't really see why this would pose an issue, in my opinion.
I realize this could be completely different dependent on the facility, but I am just innocently asking for some input.