As a pediatrician with 12 years of experience, I can attest that few things in life happen as quickly and unexpectedly as cardiac arrest. This sudden event can lead to tragedy and devastation if those nearby are not prepared to take immediate action. In the hospital, we are trained to address these situations, but every year, more than 356,000 people in the United States experience cardiac arrest outside a hospital setting. Alarmingly, about 90% of these individuals do not survive.