What medication is given to every person who has had a cardiac arrest?

Every person who has experienced a cardiac arrest is typically given epinephrine as part of their resuscitation protocol. Epinephrine helps to improve blood flow to the heart and brain during CPR by constricting blood vessels and increasing heart rate. Additionally, other medications such as amiodarone or vasopressin may be administered depending on the specific circumstances and guidelines followed by the medical team.