I understand how CPR works we breathe in oxygen and exhale CO2 so come during when into the person are exhaling there body insted of oxygen?

When performing CPR (Cardiopulmonary Resuscitation), the goal is to provide oxygen to the person's body and facilitate the removal of carbon dioxide (CO2), regardless of whether they are inhaling or exhaling. Here's an explanation of what happens during CPR:

1. Compressions: During chest compressions, pressure is applied to the person's chest, which helps to circulate the blood and push oxygenated blood to various organs and tissues in the body.

2. Inhaling: During the inhalation phase of CPR, if the person is not breathing effectively, the rescuer provides rescue breaths by delivering oxygen into the person's lungs. This oxygen is used by the body's cells and tissues.

3. Exhaling: Following rescue breaths, the rescuer allows the person to exhale passively. Even if the person is exhaling when breaths are provided, the oxygen-rich air delivered during rescue breaths still enters the lungs. The body naturally exhales CO2 during this phase.

4. Continuation of compressions: The rescuer continues to perform chest compressions during the exhalation phase to maintain blood circulation, even if the person's lungs are not actively expanding.

By combining chest compressions and rescue breaths, CPR helps to ensure that oxygen is delivered to the person's body while assisting in the removal of CO2. The primary objective of CPR is to sustain vital functions and circulate oxygen-rich blood throughout the body until emergency medical assistance arrives.