Interesting vlog titled We, Deafies have equal access to today's techology. NOT! She has MANY good points, especially when she said that we still have a long way to go in catching up.
I was in the hospital in 2003 for a bad infection and December 2008 for knee surgery. I had the same problem as RLM in the comments when he was trying to use the call button on his hospital bed. I had my hearing aids on/off and I could hear/feel them talk, but that was it. All I could do is tell them I needed them for something. At one DC Metro stop's turnstile near the elevator, when my farecard didn't work a couple times, I had to press the help button. When someone said something, I just said "I'm deaf, I can't understand you."
It shouldn't be too hard to put some sort of notification to note that a patient in a room has a hearing loss and may or may not be able to respond to the patent pressing the call button.
But, technology *CAN* be used to create things to allow someone at the other end to respond. If that's created, one problem that will be faced is those who will abuse and vandalize it.
When it's inclusive of everyone, then we know we've gotten some inroads somewhere. We've got at least some with the TTY phones in airports and other places. But in the meantime, sometimes you gotta depend on other people.
Technology, indeed. It can be good and a curse at the same time...