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The compression and ventilation ratio for a two-person rescue CPR is 15 compression and 2 breaths.
30 compressions 2 breaths. Per 2010 AHA guidelines. Compression only CPR can be performed if no barrier device is present.
For an adult, 2-rescuer CPR compression to breath ratio is the same as 1-rescuer; 30 compressions to 2 breaths.
For 1-person CPR the compression-ventilation ratio for children (and adults and infants) are 30 compressions to 2 breaths.
For every 30 compressions, you give 2 rescue breaths.
30:2
30:2
15:2
the same as for 1 person CPR 30:2 (Compression:Breaths)
1 rescuer CPR for infant is 30 compressions to 1 breath.
With 2 rescuers, compressions and ventilations should be done at a ratio of 15:2 for an infant or child.
30 compressions to 2 vents, for a single person, lay rescuer.