question: My 23 year old son choked this evening at dinner. My younger son and I performed the Heimlich on him and got him breathing. The food didnt come out, but we have been watching him for the past hour and believe it has gone down. Unfortunately I think we may have cracked or broken a rib. How can we be sure that the food has gone down to his stomach? Can it go "down the wrong pipe" into his lungs? He is breathing fine...but I dont know whether to take him to the ER or not.