What do you do when the CO's won't take action?

I had a situation last time I worked at a particular unit. I am curious as to whether any of you experience the same, and what did you do....or what would you do? We had an inmate in the psych observation cell that was in a psych crisis...hearing voices, hallucinating, talking to people that weren't there, hurting himself...etc.
This was day 2 of this, and he had been brought into the cell the day before due to cutting himself. His hallucinatory problems were becoming worse, and of course he was refusing his meds. Psych had not talked with him yet, as it was the weekend, and they never visit on weekends. Now the C/O's weren't shaking these guys down, because there had been a couple in a row that still had razor blades on them. This guy that I am referencing did too. He had cut his arm the day before, and the provider sutured it (long, but relatively superficial laceration down the length of his forearm), plus some other misc. cuts from sawing with a blade. Well, he showed us through the tiny window of the psych cell that he still had a razor blade. I was standing right there with the C/O when he showed it to us and told us that he was going to cut himself again. Well, the C/O, when I asked if they would go in and take it away, just kind of laughed at me. He said, and I quote "We aren't going in there unless he decides to use it". I replied that we "kinda knew that he was serious", not to mention his personal history of such behavior since he was in his early teens. I just could not believe that they would just sit back and wait for him to do something before they would go in and get him. And that is exactly what happened. The only reason they FINALLY went in to get him, after he opened his sutured laceration back up, and added a few more, was that the inmate made an allegation of a sexual assault. They said they had to have him examined and take his statement due to that allegation. Otherwise, they would have just let this dude sit in the psych cell dripping blood all over. It was more than frustrating. And this was the top ranking officer on the premises at this time, so there was no one else to call. So, what have you done, if you have encountered this type of behavior?