I've talked to several people whose loved ones had a DNR and the home refused giving them pain meds and comfort measures ... well! if you don't want to be resusitated then you obviously don't want ANYTHING !!!
So loved one ends up in pain screaming and moaning ... literally.
No, apparently the family hadn't talked to the doc. Asking them about it now would probably create more sadness.
Family absolutely needs to discuss what a DNR means to and for the loved one.