How quickly should CPR be started after determining a patient is in cardiac arrest?

Starting CPR immediately after confirming that a patient is in cardiac arrest is crucial for survival. The heart may stop pumping effectively, and the patient loses consciousness, respiration, and circulation. Timely initiation of CPR helps maintain blood flow to vital organs, particularly the brain, which is highly sensitive to a lack of oxygen.

Research indicates that brain damage can occur within just a few minutes of cardiac arrest, and the chances of survival decrease significantly for each passing minute without intervention. Therefore, by starting CPR immediately, you maximize the opportunity to restore circulation and potentially save the patient's life. This is why immediate action is not only encouraged but essential in emergency situations involving cardiac arrest.