Its important for all Preppers to know first aid and CPR.
Your local chapter of the Red Cross should offer these courses plus they also offer preparedness classes.
There is also an online CPR and First Aid class you can take which is good to become familiar with the information until you can take a hands on class. eCPRcertification.com is one such online class that I’ve checked out. They offer free classes but if you want to get a certificate you have to pay for it, so as long as you just take the class it should be free, just stay away from the certificate part or it will cost money. The best way to learn CPR or first aid is to take a hands on class.
Our group Northern New Jersey Preparedness Group is currently looking into First Aid classes and are hoping to offer them to our group soon.