In a two-person rescue what does each person do if the victim is unresponsive?

When we have a situation that calls for CPR we need to act immediately and efficiently.  There are two methods to performing CPR: Single rescuer CPR is also known as one-rescuer CPR or one-person CPR. When you have a partner, you may also hear it as two-rescuer CPR or two-person CPR.

Between the two methods, 2-rescuer CPR is more efficient due to one person performing compression's and another is giving breaths, it’s not as tiring and there’s less of a delay between compression's and breaths. Therefore, it’s more efficient and it’s more effective.

If there are two rescuers available, here’s how to decide what type of CPR to perform. If both people have been trained in how to perform 2-rescuer CPR, and there is someone else available to call 911, then 2-rescuer CPR is preferable. If there isn’t a third person to make the call, then one of the two rescuers should make the call immediately, and should only begin 2-rescuer CPR afterward.  

On the other hand, if only one or neither of the rescuers are trained in 2-rescuer CPR, then the rescuer or rescuers on the scene should do 1-rescuer CPR. There is too much coordination and communication necessary in 2-rescuer CPR to attempt it without advanced training. Instead of 2-rescuer CPR, each rescuer should take turns performing 1-rescuer CPR until he or she gets tired, then they should trade off with the other person to do 1-rescuer CPR, until that person gets tired. It is recommended that the two rescuers trade off about every two minutes. That’s approximately five cycles of 30 compressions and two breaths.

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not really sure sorry just trying to get points