If you or a loved one want a DNR in whatever circumstances, do not do what my MIL did this week and wait until the last possible second to finally sign one. It’s been hell on my DH and his sister trying to get that arranged while MIL is doped up on pain meds in the hospital. My DH has been bugging his mom about a healthcare directive for 10 YEARS and not until she could barely speak because she was out of it would she consider making a decision one way or another.
For somebody in my MIL’s condition, honestly, CPR would be a waste of time. But for somebody different? It could save their life.
But if you don’t want certain things done, then suck it up and put the paperwork together.