(You may already know this) but at least in the US, it's common for older patients to put a DNR (do not resuscitate) order on their medical file, making it so l

(You may already know this) but at least in the US, it's common for older patients to put a DNR (do not resuscitate) order on their medical file, making it so life saving measures won't be taken near/at end of life. Most commonly this means that CPR can't be performed.