Im so sorry your going through this. Its such a delicate situation. When my difficult child mentioned anything regarding suicide, she was shipped off to the hospital. I just think you cant be too careful with these threats. You just never know whats going on in their minds. It's better to be safe and wrong then the alternative. Especially given the medications she is on. I know you have to do what you think is best, I just thought id'e give my opinion.
Sending out positive thoughts and wishing you the best.