u dun have to count the ribs... just put your palms on the
abdomen and search for the costal margin... the final rib that
connect to the sternum... u have 12 ribs altogether, 2 ribs are
floating ribs, meaning they don't connect to the sternum... so only
the 2nd to the 10th rib connects to the sternal body itself... the
1st rib connects to the notch... once u detect the margin, move up
to the center where the xiphisternum is and start compressing
