If somebody’s been pronounced dead and then you start CPR, you don’t want the
embarrassing situation where they start to wake up again. For older people that
are really far gone it’s not a concern, but sometimes life can start
to come back a bit so general anesthetic takes care of that.
That someone is coming back to life is considered "embarrassing", and ought to be stopped with a general anesthetic? That doesn't sound like someone I'd want in the emergency room by my bed...