What should be prioritized when performing CPR on an adult?

In performing CPR on an adult, rapid defibrillation is crucial as it significantly increases the chances of survival for a patient experiencing a cardiac arrest. When the heart stops beating effectively, the primary goal is to restore normal heart rhythm as quickly as possible. Defibrillation provides an electric shock to the heart, which can potentially reset the cardiac electrical activity, allowing the heart to regain a functional rhythm.

Initiating CPR immediately is also an essential component, but the emphasis on rapid defibrillation underscores the critical window where timely intervention can lead to a higher likelihood of successful resuscitation. Each minute that passes without defibrillation decreases the chances of survival by approximately 7-10%, making speed essential in this context.

In contrast, while aspects like providing comfort, calling for police, or checking the pulse may have their place in emergency response, they do not contribute directly to the immediate life-saving measures necessary in cases of cardiac arrest, where every second counts. Prioritizing actions that directly address the underlying problem—like defibrillation—ensures that the most effective treatment is delivered as swiftly as possible.