When someone collapses and stops breathing, every second matters. Yet in many cardiac arrest emergencies, bystanders hesitate—or do nothing at all. The reason isn’t indifference.

When parents leave their children with a babysitter, they’re trusting that person with what matters most. While most babysitting shifts are calm and routine, emergencies can happen without warning.

Medical emergencies don’t schedule themselves. Cardiac arrests, choking incidents, and sudden medical crises can happen anywhere—including the workplace. When they do, the actions taken in the first few minutes often determine the outcome.

When someone’s heart suddenly stops beating outside a hospital setting—at home, at work, or in a public place—it’s called an out-of-hospital cardiac arrest (OHCA). These events are medical emergencies of the highest order.