Which sequence correctly represents the adult chain of survival?

Which sequence correctly represents the adult chain of survival?

• A. Activation of Emergency response → Early recognition and prevention → High-quality CPR → Defibrillation → Post-Cardiac Arrest Care → Recovery
• B. Early recognition and prevention → Activation of Emergency response → High-quality CPR → Defibrillation → Post-Cardiac Arrest Care → Recovery
• C. Early recognition and prevention → High-quality CPR → Activation of Emergency response → Defibrillation → Post-Cardiac Arrest Care → Recovery
• D. Early recognition and prevention → Activation of Emergency response → Defibrillation → High-quality CPR → Post-Cardiac Arrest Care → Recovery

Answer: (B)

The sequence being tested is the order in which actions should happen to give an adult in cardiac arrest the best chance of survival. It starts with recognizing the emergency and taking steps to prevent deterioration, then immediately summoning help. Once help is on the way, you begin high-quality chest compressions to keep blood flowing to the brain and heart. As soon as a defibrillator is available, you use it to deliver a shock if the rhythm is the type that benefits from defibrillation. After a return of spontaneous circulation, attention turns to post-arrest care to stabilize the patient and treat the underlying cause, with recovery following as the ongoing process. This flow—recognize and seek help, start CPR promptly, defibrillate when indicated, then move to post-arrest care—keeps timely intervention at the center of each step. The other sequences either delay calling for help, place CPR after attempting to call, or push defibrillation ahead of immediate CPR, which can reduce the chances of maintaining perfusion while preparing for a shock.

The sequence being tested is the order in which actions should happen to give an adult in cardiac arrest the best chance of survival. It starts with recognizing the emergency and taking steps to prevent deterioration, then immediately summoning help. Once help is on the way, you begin high-quality chest compressions to keep blood flowing to the brain and heart. As soon as a defibrillator is available, you use it to deliver a shock if the rhythm is the type that benefits from defibrillation. After a return of spontaneous circulation, attention turns to post-arrest care to stabilize the patient and treat the underlying cause, with recovery following as the ongoing process. This flow—recognize and seek help, start CPR promptly, defibrillate when indicated, then move to post-arrest care—keeps timely intervention at the center of each step. The other sequences either delay calling for help, place CPR after attempting to call, or push defibrillation ahead of immediate CPR, which can reduce the chances of maintaining perfusion while preparing for a shock.