Ambulances are so 2016. After a cardiac arrest, the fastest way to send help is on a flying drone

The best medicine for a person who goes into sudden cardiac arrest is an electric shock. That jolt temporarily stops the heart, along with its rapid or erratic beat. When the heart starts itself up again, it can revert to its normal rhythm and resume pumping blood to the brain and the rest of the body. The sooner this happens, the better. When a patient is shocked within one minute of collapse, the chance of survival is nearly 90%.