how many chest compressions for cpr

The recommended number of chest compressions for CPR is 30 compressions per cycle, followed by 2 rescue breaths for those trained to provide breaths. Compressions should be performed at a rate of 100 to 120 compressions per minute, pushing down about 5 to 6 centimeters (2 to 2.4 inches) on the chest. This cycle of 30 compressions and 2 breaths is to be repeated continuously until medical help arrives or the person shows signs of recovery. For untrained rescuers, hands-only CPR with continuous compressions at the same rate is advised.