Final answer:
In ACLS, antiarrhythmics are given to treat arrhythmias. Beta blockers, procainamide, and other medications are used to restore a normal heart rhythm. Cardioversion or defibrillation may also be performed for severe symptoms of arrhythmias.
Step-by-step explanation:
In ACLS, or Advanced Cardiovascular Life Support, antiarrhythmics are given for the treatment of arrhythmias. Arrhythmias are abnormal heart rhythms that can be life-threatening. Antiarrhythmic medications, such as beta blockers or procainamide, are used to restore a normal heart rhythm. Additionally, cardioversion or defibrillation may be performed as urgent treatment for severe symptoms caused by arrhythmias.