Cardiopulmonary resuscitation (CPR) is used when an individual's heart has stopped or is no longer effectively pumping blood and oxygen to the body's vital organs. CPR is a technique that involves chest compressions and rescue breaths, and it is used to manually circulate oxygenated blood to the person's brain and other vital organs until advanced medical help can be obtained. CPR is typically performed in emergency situations such as cardiac arrest, drowning, or choking, where immediate intervention is necessary to sustain a person's life.
