This document provides an overview of Advanced Cardiac Life Support (ACLS). It defines ACLS as a systematic approach to resuscitation. The core concepts of ACLS include airway management, BLS certification, early management of cardiac emergencies, use of electrical therapy like defibrillators, identification and treatment of cardiac arrhythmias, IV/invasive techniques, and pharmacology. It also reviews the 5 links in the adult chain of survival - activation of EMS, early CPR, defibrillation, ACLS protocols, and post-cardiac arrest care. Common cardiac rhythms like sinus tachycardia, atrial fibrillation, ventricular tachycardia, and asystole are depicted