CPR: What It Is and What to Expect
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor provides CPR?
CPR stands for cardiopulmonary resuscitation. It is an emergency rescue method used when someone's heart stops or they stop breathing. It is usually started by a bystander and continued by emergency medical workers. Emergency room doctors and other hospital staff take over once the person arrives at a hospital.
What it is
CPR combines chest compressions with rescue breaths. Compressions mean pushing hard on the center of the chest; rescue breaths mean breathing air into the person's mouth, pushing blood to the brain and other organs until the heart can be restarted. Hands-only CPR, compressions without breaths, is a good option for untrained rescuers.
Why a doctor might recommend it
Doctors recommend that everyone learn CPR. Cardiac arrest, the heart suddenly stopping, can happen anywhere, and the brain suffers damage within minutes. CPR keeps blood flowing during that time and, per the CDC, can double or triple survival chances.
How to prepare
Preparation means training ahead of time.
- Take a CPR class through the American Heart Association, American Red Cross, or a local hospital.
- Learn hands-only CPR: pushing hard and fast in the chest at 100 to 120 pushes per minute.
What happens during it
Someone checks whether the person is responsive and breathing. If not, the rescuer calls 911 and starts compressions right away, pushing hard and fast in the center of the chest, following a defibrillator's voice instructions if one is available. Compressions continue until emergency workers arrive or the person breathes.
Recovery
Recovery here refers to the person who received CPR. Survivors often need hospital care afterward. Doctors look for the cause of the arrest and check for injury from lack of oxygen. Some recover well; others have lasting effects.
Risks and side effects
CPR done properly can still cause injuries. Pushing on the chest may crack or break ribs, and rescue breaths may push air into the stomach. These are usually acceptable because the alternative is death.
Who performs it
Anyone trained can perform CPR, and bystanders often start it first. Paramedics and EMTs continue it en route to the hospital, where emergency and critical care teams take over. A cardiologist often manages the underlying heart problem.
How a direct primary care or concierge doctor fits in
Direct primary care and concierge doctors do not perform CPR during emergencies; call 911 first. But they can help before and after. These doctors charge a flat monthly fee instead of billing insurance. They can check heart risk factors like blood pressure and cholesterol, refer you to a cardiologist if needed, and manage follow-up care after cardiac arrest.
Common questions
Can I hurt someone by doing CPR?
You might break a rib, but a person in cardiac arrest will die without help. The CDC and the American Heart Association both encourage people to act. Doing CPR is far better than waiting.
Do I need to give mouth-to-mouth breaths?
Not necessarily. Hands-only CPR uses only chest compressions. It is recommended for untrained bystanders. Trained rescuers may add breaths.
How long should CPR continue?
Continue until emergency workers take over, a defibrillator is ready to analyze the heart, or the person shows clear signs of life. This can be tiring. Switching rescuers every couple of minutes helps if others are present.
Where can I learn CPR?
The American Heart Association and the American Red Cross offer classes in person and online. Many local fire departments and hospitals also teach it.
Sources
- MedlinePlus - CPR - adult and child after onset of puberty
- Centers for Disease Control and Prevention - Heart Disease Facts | Heart Disease
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
