Emergency physicians also recommend that people add "ICE" entries in their cell phone address books. For example, "ICE1 - mom" and "ICE2 - husband." ICE stands for "In Case of Emergency," an acronym that medical professionals recognize and use to notify the person's emergency contacts and to obtain critical medical information if a patient arrives unconscious or unable to answer questions.

If you arrive in the emergency department unconscious, emergency staff will check your cell phone for ICE contact information.