ocr: Iwo-Person CPR Iwo-person CPR can be performed when two rescuers are available from the beginning or when one person has been doing CPR and another arrives to help. A11 of the techniques you learned for one-person CPR are relevent for two-person CPR. The major dilierence is that instead of 15 compressions to 2 breaths, the ratio is 5 compressions to 11 breath without interruption.