#1. 100 chest compressions/minute is an amazing aerobic workout. Don't forget to breathe.
#2. There's actually a specific depth of compression: 1.5" for infants, 2" for everyone else.
#3. Chest compressions for infants involve three fingers and are incredibly painful to do.
#4. You are supposed to pound a choking victim's back (between the shoulder blades) in addition to Heimlich.
#5. AED training is now part of basic first aid.
#6. As a first responder, I'm exempt from legal consequences as long as I get patient consent and don't bill them afterwards.
#7. The classic set of heart attack symptoms (in particular, chest pains) are sexist: cardiac arrest expresses differently for women.
#8. If there are bystanders, one useful thing they can do is clear the way for the EMTs.
#9. It's possible to have pepper allergies. (And it sucks to have them and be Romanian.)
#10. Swelling in the legs is a sign of hyperthermia.
It feels really, really good to be Red Cross certified again. Even if it does involve a $25 fee for getting caught in the wrong parking lot.