This feature is very similar to the account profile/face sheet that uses text block to display a document about the account.
This feature allows users to create a user configurable "template" using reserved words - containing medical emergency info. One example of its use is that it’s something that would accompany a resident to a hospital.
There is a configurable text block:
You can view this with the button at the top of the account profile:
The document looks similar to the account profile (it all depends on which reserved words you would like to display):
