This doesn't sound all that bad. There are people who lost the will to live in Nazi extermination camps or who died of radiation sickness from the atom bomb. Compared to those two, this is a very pleasant way to exit life.
There was always at least one patient screaming to be let out, to go home, or that they were suffering in some way. Screaming the same thing, every ten seconds. Hour after hour.
One shouted "Please!" "Please!" over and over again, in a piteous voice.
Those are the ones who still have some speech faculty left. While I know that many were either unaware of anything (like my father at the end), or lived in some pleasant accommodation, there were several who went through agony.