[righttackle44]

There are certain times when a medical condition precludes the usual treatment or procedure on a person because the treatment or procedure might prove harmful or even fatal.

When I worked for a hospital as a audiovisual tech, we had a case where a man--I don't know the name of the condition--would have very different blood pressure readings, depending on which arm the blood pressure cuff was placed. If the man were to become unconscious in, say, an automobile accident and was not able to tell medical personnel about the condition, incorrect treatment might kill him. He had that fact tattooed on his right arm to take a blood pressure readings on his left arm because of the condition.

[goat granny]

I want a NO CODE tattoo on my chest....Do not resuscitate is too long When I worked at the hospital someone was taking orders for a 14K gold charm that said NO CODE. Most of the nurses bought one, but that was long before gold was the price it is now...We see too many bad results from someone being coded, a few success's but lots of bad outcomes...My doctor is a young guy, (by my 70 year old standards) and when I told him I was a NO CODE, he said he was also...

There are a few things worse than death...(of course the persons age also figured into such thinking)