Independent Historian

Another term that you'll see within element two is an independent historian, which is an individual, for example a parent, guardian, surrogate, spouse, or witness to provide a history in addition to a history provided by the patient who is unable to provide a complete or reliable history. This may be due to developmental stages, dementia, or psychosis or because a confirmatory history is judged to be necessary. In the case where there may be a conflict or poor communication between multiple historians and more than one historian is needed, the independent historian requirement is met in the elements of two. 

Great Martiza. You can see where this could come up in instances of trauma. Or if somebody is rendered temporarily, has a temporary decrease in their cognitive skills or memory. And as you’ve mentioned, certainly it could be an issue with patients suffering from dementia, or some other neurological cognitive impairment. It won’t be a common component used, but sometimes just as I mentioned, a necessary component. So, thank you Maritza.