How can chest compressions affect the lifespan of a victim?

Chest compressions play a crucial role in increasing the odds of survival for a victim experiencing cardiac arrest. When a person's heart stops, blood flow to vital organs ceases, which can lead to irreversible damage within minutes due to lack of oxygen. By performing chest compressions, rescuers can manually circulate blood throughout the body, providing vital organs, especially the brain, with oxygen. This circulation helps to preserve the organs and extends the window of opportunity for medical intervention, such as defibrillation or advanced life support, to take effect.

The effectiveness of this technique relies on the depth and rate of compressions, which are vital for maintaining adequate blood pressure and flow. Moreover, prompt initiation of chest compressions is a critical factor in improving survival rates, as it can significantly delay the onset of brain injury and other complications.

In summary, the correct answer explains that chest compressions enhance a victim's chance of survival by maintaining essential blood flow during a cardiac emergency, countering the life-threatening effects of cardiac arrest.