And now for some Real Life Useful Notes about CPR.
First off, if someone near you is not breathing at this moment, GET OFF TV TROPESnote AND DIAL 9-1-1,note 1-1-2,note 9-9-9note OR WHATEVER THE EMERGENCY NUMBER IS IN YOUR JURISDICTION!!!note Time is of the essence. The operator can instruct you on the phone.note extra noteCPR, AED and other First Aid training is highly desireable, especially in certain fields of employment. If you are interested, certification courses are widespread. A good place to look is your local Red Cross. note Proper execution of CPR is vital, which is why formal training is important.note If done wrong, not only could it be ineffective, but it could damage the rib cage in a fatal manner. Proper execution could still break ribs; this is alright, and some physicians suggest it may even be necessary. Improper execution could snap off the xyphoid process at the bottom of the sternum and damage the heart itself, rendering CPR pointless. Don't confuse it with the Heimlich maneuver, used to expel objects blocking a person's throat. CPR is for dealing with a stopped or very slowed heart, an entirely different emergency. TV Tropes is not an encyclopedia. If you want more detailed information, see the article on the other Wiki.