| | Public Health Safety | CPR What is compression-ventilation ratio for 1 rescuer adult CPR? The compression-ventilation ratio for 1 rescuer adult CPR is 30:2. This means that for every 30 chest compressions, 2 rescue breaths should be given. CPR - Related Articles Medicare Application FAQ Artery Plaque Reduction What is an ion cleanse foot bath? Where you can find information about puberty? What Colors Could Be Used to Ease Depression & Anxiety? The Best Home Remedy for Toothache Pain Theories of Nursing