Which one of the following links in the American Heart Association's Chain of Survival must occur first, if a patient is to survive cardiac arrest?

Question

Quizplus · Accepted Answer

Early access to the emergency response system (calling 911 or activating the emergency medical services) is the first step in the Chain of Survival. This ensures that trained medical professionals can quickly respond and provide necessary care. Without early access, other steps such as CPR and defibrillation may not be effective in saving the patient's life.

Which One of the Following Links in the American Heart