The danger from an electrical shock depends on the type of current, how high the voltage is, how the current traveled through the body, the person's overall health and how quickly the person is treated.
An electrical shock may cause burns, or it may leave no visible mark on the skin. In either case, an electrical current passing through the body can cause damage inside the body, cardiac arrest or other injury. Sometimes, even a small amount of electricity can be fatal.
Call 911 or your local emergency number if the injured person has:
Take this action right away while waiting for medical help:
A person who has been injured by contact with electricity should see a healthcare professional.