Infant CPR…Do you know what to do?

I know as a mommy of two little ones, I have had my heart stop a few times over my child choking on a piece of food. It is scary and it causes me to go into panic mode, slapping my child silly on the back until they are okay. It dawned on me that maybe I should learn the proper technique to dislodge a food particle or even if one of my kids stops breathing for whatever reason. What a thought right!?!