How long should you check for breathing before starting CPR?

When determining whether or not to start CPR, it is recommended to check for breathing for about 10 seconds. This duration is adequate to assess whether the person is breathing normally or not, allowing for a clear evaluation before intervening. During this time, look for the rise and fall of the chest, listen for breath sounds, or feel for breath on your cheek. A decision to begin CPR should be made if there’s no normal breathing detected within that timeframe. This approach ensures that the rescuer does not wait too long to start chest compressions, which are critical for maintaining blood flow and oxygenation in a person in cardiac arrest. The emphasis on a 10-second interval balances a thorough assessment without unnecessary delay in life-saving actions.