With my dual interests in Apple tech and Community First Responding I think this will will be an excellent feature in iOS 8: Emergency card. In the Medical ID section of the Health app, you’ll be able to set up personal information for medical conditions, allergies/reactions, and other medical notes to be displayed in an Emergency card available on the Lock screen. In some cases (such as severe allergies and reactions), immediate access to this information can be a lifesaver.
http://www.macstories.net/roundups/more-ios-8-features/