My bear incident left me with an injured wife 200 Yukon River miles from the pipline road,still 8 hrs of washboard gravel to Fairbanks.It took 24 hrs of travel to get to the hospital.
I did have some first aid supplies,including a small bottle of Betadyne.
Another useful resource,my older brother was along.He served in an "A" camp as a Special Forces medic in VN in "66-67.
At that time,I was doing a lot of river tripping,also.While I had no intention of pursuing an EMT job,I decided EMT training was a good idea.So,I did it.
That only goes so far,it won't make you Pierce or Hawkeye on MASH,but you will have a mechanic's idea of how the body works,and you might be able to A) Have an idea of how to do some good B) Have an idea of how to avoid doing harm.
While you are in that circle of EMS training,you might get to,through a little extra training and talking with a Doctor ,get to know if it is OK to give an aspirin,or have a small bottle of Oxygen,or whatever the Dr will help you with.
Communicate useful info,like"I have had a heart attack,I have nitro pills,I keep them in this pocket"
Know allergies,meds,Dr names,etc ahead of time,maybe an info card.
And,assuming you are the young guy in better shape,A)Don't kill yourself! B) use the most important of tools,Wisdom,observation,etc.
Maybe,walking up a hill,You have to be the guy that says "I need a break,lets rest",when really you juts see old Joes is running on will rather than listening to his body.
Encourage the humor of "Age and treacherey vs Youth and enthusiasm.
Example,Young guys who head all directions leaving camp,make a great cloverleaf and drive critters toward an old guy in a lawn chair just outside camp as they return.
When there is a kill,that few minutes to let the animal go down rather than immediate pursuit is a "Chill" moment for the heart.Another "Chill" moment is just sitting and reflecting on the Circle of Life at the animal.Take a few pictures,then approch the dressing as surgery rather than rushing.
Remember hydration.Alchohol dehydrates.Electrolyte replacement,is important.
Like,potassium is part of muscle cramping and heart rhythm
Introduce more young guys to hunting.Give them education,use them for mules.