Advanced Cardiovascular Life Support (ACLS) Practice Exam 2025 – Your Comprehensive All-in-One Guide to Exam Success!

In a case of suspected cardiac arrest, the immediate priority is to use an Automated External Defibrillator (AED). Cardiac arrest often results from life-threatening arrhythmias such as ventricular fibrillation or pulseless ventricular tachycardia, which can be effectively treated by defibrillation. The use of an AED can correct these arrhythmias and restore normal heart rhythm, thereby increasing the chances of survival if applied promptly.

While calling for emergency assistance, ensuring a clear airway, and other interventions are important, they do not provide the immediate life-saving benefit that defibrillation does in the setting of a cardiac arrest. The rapid application of defibrillation is crucial and should occur as soon as possible after recognizing the absence of normal heart activity. In fact, every minute that passes without defibrillation decreases the chances of survival significantly, emphasizing the importance of prioritizing the use of the AED right away.