Tachyarrhythmia algorithm ACLS guides healthcare professionals in managing fast heart rhythms. It involves understanding tachyarrhythmia types, using antiarrhythmic medications, and employing management strategies like CPR, cardioversion, and pacing. Cardiologists, emergency physicians, and critical care specialists collaborate to diagnose, treat, and prevent these potentially life-threatening conditions, adhering to guidelines from organizations like AHA and ERC for ACLS.