I got my EMT training over 20 years ago and have not been to any refresher in over 10. That said, I still remember a lot of the basics from the time I was involved so I tend to get more "stuff" for a medical kit than some (like the one in the RV) but, your best item of survival gear is your mind.

Go and get some training - weekend stuff, work with the Red Cross or the local volunteer fire/rescue or something to build the skill set. That will do you much more in a long term situation than any stock of supplies.

Paul -