The Butterfly Symbol
This symbol is included on our Information form to indicate whether the owner of the form has Dementia or Alzheimers - All hospital trusts will use a symbol of some kind either a butterfly or an flower to indicate this.
The reason for this is because in most cases patients do not, will not, or can't remember that they have the disease.
So it indicates to our first responders that the person they are dealing with will need to be handled differently, especially under stress.
And also that what they say might not be quite the truth - e.g. address's given quite often would be a childhood address which can cause a lot of confusion.