True because you would need to put up an ad saying "kidney donor needed" or "blood donor needed" if you didn't do that you would most likely be stuck with no donor unless a friend or family member donates
Body mass index is the most commonly used simple measure of obesity.
A RN Nurse would be better and quicker and a good start. Many schools are forwarding that position and beginning to make classes about it, as the nurse job is the future.
That's my opinion, take it from a Fire Fighter and soon to be EMT.