What is one of the first actions to take when someone is in cardiac arrest?

In a situation where someone is experiencing cardiac arrest, one of the first crucial actions is to contact emergency medical services (EMS). This step is essential because cardiac arrest is a life-threatening condition that requires immediate professional medical intervention. By alerting EMS quickly, you ensure that advanced medical help can arrive as soon as possible, which is vital since each minute that passes without treatment decreases the chance of survival due to brain damage and other complications.

After contacting EMS, other actions such as checking for a pulse, beginning CPR, or using an automated external defibrillator (AED) should follow, but notifying emergency responders is paramount to getting the necessary resources on the scene without delay. This immediate communication can significantly improve the outcomes for the individual experiencing cardiac arrest.