I’m willing to bet this has happened before, in fact, it’s probably the most common outcome. It’s just not announced to the general public.
No mention of the drug used.
Do you remember the case of Jahi McMath, I posted about her in around 2013?
Short story she fell into a coma and they were pressuring her mom to let her die so they could harvest her organs.
Mom said no.
I actually met her mother at a pro life event in WV.