Final answer:
In the event of cardiac arrest, it is vital to begin chest compressions immediately to maintain blood flow to critical organs.
Step-by-step explanation:
When recognizing cardiac arrest, compressions should begin immediately. This quick response is essential because cardiac arrest occurs when the heart no longer pumps blood effectively, leading to a lack of oxygen to vital organs, especially the brain. Without oxygen, brain cells begin to die within minutes, so immediate action is crucial. The goal of CPR is to maintain the flow of blood until the heart can resume beating on its own, and it should be performed continuously until medical help arrives or the patient regains spontaneous contraction.