Rescue breathing, also known as mouth-to-mouth resuscitation, is a part of CPR that involves providing artificial ventilation to a victim who is not breathing but has a pulse. This technique is used when a person is unresponsive and not breathing effectively, even though they have a detectable pulse. The rescuer delivers breaths to help maintain oxygen levels in the victim's body while waiting for more advanced medical help to arrive. In the context of CPR, rescue breathing is typically performed after checking for responsiveness, confirming that the victim is not breathing, and ensuring that the victim has a pulse. The rescuer should then open the victim's airway, take a normal breath, cover the victim's mouth and nose with their mouth, create a seal, and then give two rescue breaths, each lasting about one second. The goal is to make the chest visibly rise with each breath. It's important to note that if the rescuer is not trained in rescue breathing or is uncomfortable performing it, they can choose to perform hands-only CPR, which involves only chest compressions and no breaths. read more >>

CPR with/without giving breaths is used when the victim is Unresponsive, Not breathing , and has no pulse. Chest compressions are done and breaths (if given) alternate ..30 compressions then 2 breaths. Rescue breathing is used when an adult, child or infant has a pulse but is not breathing effectively.read more >>