The risks and problems are a lot worse for old people than for teenagers. The story in this article is allot more complicated than "Don't try to revive toddlers or always revive comatose 110 year olds". As important as CPR is, people who will be performing it deserve to know 9 out of 10 people will still end up dead. Nobody gains anything from a bystander blaming himself for the death of someone they could never have saved.

For many survivors, life after CPR is a gate worse than death. I'll try to apply CPR should I ever need to, but if I were to end up a vegetable or permanentlysufferimg husk like so many people, I'm pretty sure I'd be begging for euthanasia if I still can.

I may not agree with their decision, but I understand why the nurse in the story may have refused. If I get to live to a ripe old age, I'd get whatever do-not-recussitate paperwork I might need.