I’m currently certified and we are told that unconscious means consent and once you determine they’re not breathing (only criteria) then you perform cpr. I’ve been certified for over 7 years as a dispatcher and we often provide these exact instructions. Since we deal with the whole of the US we use national protocols which are valid throughout the country (emd epd protocols) and unless you know for SURE they are breathing you perform CPR every time. Doesn’t matter if they have a DNR. Unless of course they just had a seizure then you wait. But if you can’t confirm breathing or you say they’re snoring we are going straight to chest compressions. I’ve been trained by some of the most knowledgeable people who I was lucky to have the privilege to learn from. This training has served me very well.