I was so excited when I heard about holistic nursing because I have long thought that the US health care system needs to change. If you think about it, nurses are the best catalyst for this change because they can provide important services that are now missing in our system. Among these are communication with patients and families, providing more and better alternatives for treatment and following up with how the patient is doing.
I think nurses started doing this by themselves even before holistic nursing was recognized. When I was in college, my health care was provided by nurses. They were just as informed and knowledgeable as any doctor I have seen. In fact, my nurse would often prescribe something and when I went to the family doctor during semester break, my doctor would prescribe the same exact thing.
This is why I think that informal requirements to be a holistic nurse is to study a lot about both modern medicine and holistic treatments and also to be able to work independently. A holistic nurse needs to be able to make the call and take a decision about their patients' treatments even without a supervising doctor. They must also sincerely care for their patients and really go beyond what has traditionally been expected from a nurse.