Resources for the Comprehensive Geriatric Assessment based
Proactive and Personalised Primary Care of the Elderly


4 A's Test

Purpose : Rapid assessment test for delirium and cognitive impairment

Admin time :  10 min.

User Friendly :  High

Administered by : Any health professional at first contact with the patient, and at other times when delirium is suspected.


Content : The 4AT incorporates the Months Backwards test and the Abbreviated Mental Test - 4  (AMT4), which are validated short tests for cognitive impairment. This provides basic cognitive testing, aimed at detecting moderate-severe cognitive impairment, alongside assessment for delirium.


Author :  Prof Alasdair MacLullich (Edinburgh Delirium Research Group, University of Edinburgh, Edinburgh, Scotland), and Dr Tracy Ryan and Dr Helen Cash (NHS Lothian, Scotland), 2011

Copyright : free to use  (


285 KB

This Tool is used in Delirium

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Delirium is one of 4 sub-domains of the  

Psychological Assessment

Back To : Psychological Assessment

The Psychological Assessment is one of 8 domains of the

Comprehensive Geriatric Assessment (CGA)

Back To : Comprehensive Geriatric Assessment