Jim, all good,the wilderness stuff will help you with your nursing too.

Wilderness Medicine: either you can't get your patient(s) to a higher level of care in a reasonable time, or there is no higher level of care to get them to. Any scenario that fits in this definition is wilderness medicine.
Due to lack of equipment, being limited to what you can carry along with whatever else( sustainment gear/weapons) you need, their very big on assessment. The resources I gave believe in taking an individual with no medical background and if they have interest, bring then up to speed. Some of the skills taught would be considered practicing medicine and problematic if put to use unless you have an MD behind your name, but I think knowledge is never wasted, and it's the assessment skills and depth of knowledge(the why's, when's and when not's) that is priceless and universally applicable. This is the stuff that probably all through your career, when you asked why, you were told you don't need to know that or it's outside your scope of practice. Here's where you can get your questions answered. The reason GMRS classes are taught in Belize aside from the "classroom" being primary rain forest, is because the knowledge and skills taught cannot be taught to "civilians" in CONUS. And the principal Kieth Brown MD (AKA RESQDOC) is a gem.
Regards, Jim
PS. I have no affiliation with the above institutions aside as a student. Jim