Hi,
If it's her safety you are concerned with - you need to take her to the emergency room - especially if she's got suicidal thoughts. I'm only speaking from the experience of taking someone under the age of 18 though - perhaps someone else here knows if what I'm suggesting still holds true for those over 18? The main thing here is for her to be safe. If she can't be safe and you feel like you need to keep an eye on her 24/7... then you need to take her to the hospital.
I realize campus health services may help somewhat, but when it comes to something like this, I just don't know... this is not something to mess around with. I'm not trying to scare you, please don't take it that way. There is only so much YOU can do. If it's her safety that has you the most concerned right now, she needs to be in a safe place (and that doesn't necessarily mean you being her safety net).
If she or you have a physician you could consult and ask for a recommendation for a psychologist or a psychiatrist - that may be another way to find one.
The two of you will need to decide if she needs safety first and if so - go.
Keep us apprised,
Einna