Which is the first link in the chain of survival?

The first link in the chain of survival is immediate recognition of cardiac arrest. This step is crucial because identifying that a person is in cardiac arrest allows for timely intervention, which significantly increases the chances of survival. Recognizing the signs of cardiac arrest, such as unresponsiveness and absence of normal breathing, prompts the rescuer to act quickly—either by calling for emergency help or starting CPR.

If this initial recognition does not occur, the subsequent steps in the chain of survival cannot be effectively implemented. Early CPR, the provision of effective advanced life support, and integrated post-cardiac arrest care all rely on the person recognizing the emergency situation right at the start. Without this critical first step, delays in care can lead to potentially fatal consequences for the victim. Therefore, immediate recognition of cardiac arrest serves as the foundational element in ensuring that the individual receives the necessary life-saving interventions in a timely manner.