no, a tattoo is a major skin trauma and you should avoid them, We are a thousand years way from reanimating the dead, I think you'll be OK.
Also, DNR also stands for Do Not Resuscitate, which means if you fall down and have a heart attack, nobody can legally give you CPR, antibiotics or even just saline if you're dehydrated. Even your GP won't be able to give you anything that counts as "life saving". DNR legally stands for Do Not Resuscitate, and I'd be getting that changed or removed ASAP