New in iOS 8 is the medical id app you will find when upgrade your iPhone to the latest iOS 8. The medical ID is important because in case of emergency, medical responders can look to see information that might save your life, such as any current condition you might have, allergies, and most importantly who to contact.
RoadID app currently allow you to setup similar kind of information and you can set it up so it is on your lock screen, similar to the image you see below.
In the new iPhone health app, you can basically setup similar information, but unlike the RoadID app, anyone looking at your phone will have to click on “Emergency” then “Medical ID” to view that information. One advantage of having the Medical ID setup is the ability for anyone to call the emergency contact person you setup. Without it, if your phone is locked, no one can make a call using your phone other than calling 911 so this is a definite plus.
In order to setup Medical ID, you need to go to the new Health app on your phone and click on “Medical ID” on the lower right corner. There, you will find places to include your name, medical conditions, medical notes, allergies and reactions, medications, put in emergency contact, add blood type, specify whether or not you are an organ donor, and put in your height and weight.
Make sure you turn on the “Show When Locked” so it will be available to be used on the lock screen. When you are done, just click on the word Done in the upper right hand corner.