system
A chat on subreddit /r/NoStupidQuestions
human
Did you know to do real cpr it’s incredibly exhausting and having other people ready to take over can stop the first responders from having to help the cpr performer?
gpt
2 people doing cpr for 10 minutes would be exhausting.  If you know how to do CPR offer to help!

I will never forget being on our Christmas cruise for work with so many trained nurses and hospital personnel watching as 2 people attempted to do CPR on some guy who arrested. They literally refused the help of a large number of trained people. It took such a long time for an ambulance to get to the wharf (we hadn't left). If you have been involved in a resuscitation in a hospital we literally have a line of people ready to do compressions or better yet a machine to do them because if you are too tired you won't be delivering effective chest compressions.