I just want to thank everyone for the info they have provided here. This has been consuming quite a bit of my energy and time since Monday. Today I ended up taking both the trans* person and the spouse to the emergency room I've been with them all day. Their condition has gotten worse since I posted looking for advice.
One of them (the trans* half) has an acute head injury. The other (spouses has, among other things, advanced stage cancer. My practice is never to name names, but the trans* half is someone that is quite well known in and around Washington, D.C. It's really hard to watch what she is going through. It is so very wrong.
The spouse is, if anything, worse. I have not yet lost anyone who I was helping. But I am not at all sure this one is going to walk out of this hospital. I hope she will. But I just don't know.
Tomorrow I will be going over to the home of the folks these two were staying with until it became so clear how bad their condition was. My job is to give them a chance to debrief and support them.
Unfortunately, I am usually the leader of the whole shebang, and this is no exception. Sort of by definition, there is no one for me. So I'd welcome any words of support right now.
(And I'd really appreciate folks skipping the +1. Seriously. It makes me feel cheap when it comes to something like this).