While you are chatting with your friend at an expensive restaurant, she suddenly stops in mid- swallow and looks panicked. When you ask what is wrong, she indicates that she can’t speak and runs toward the restroom. What should you do? Assume that your first aid does not work—what procedure might emergency medical personnel use to help your friend?

While you are chatting with your friend at an expensive restaurant,
she suddenly stops in mid-

swallow and looks panicked. When you ask what is wrong, she indicates
that she can’t speak

and runs toward the restroom. What should you do? Assume that your
first aid does not

work—what procedure might emergency medical personnel use to help
your friend?