Compression-only CPR is the simplest form of CPR to learn. It is also the easiest form to administer in the field because it consist of chest compressions only; no rescue breaths are given. High-quality CPR compressions must still be given for full effectiveness, and compressions with rescue breaths (or ventilations) is recommended by the American Heart Association and ILCOR for choking or drowning victims and small children. To perform compression-only CPR (also called bystander CPR), give high-quality chest compressions at a rate of 100 to 120 compressions per minute. If multiple bystanders are present, the compressor should rotate about every 2 minutes (or 200 to 240 compressions).
