No.
If it is clear they are hurting, they are stopped. Then the question is answered.
No one can know when the time is until I happens and response is monitored.
I feel you have been obtuse and dogmatic.
It seems your a priori position is death is always inevitable, so just let it happen.
We are not talking heroic measures.
I know enough about this subject that I can safely say I do not have all the answers and I don’t think anyone else does either
I recommend the following
“How We Die”:
This is an excellent book...Dr Nuland the author recently passed away