4AT Case Studies
Realistic clinical scenarios to practise scoring the 4AT delirium assessment tool. Each case includes a worked solution explaining the correct scoring.
50
Clinical Cases
12
Healthcare Settings
3
Difficulty Levels
How to Use These Cases
The 4AT is a screening tool and is not diagnostic. The diagnosis of delirium is always made using clinical judgement. These cases are designed to help you learn correct 4AT scoring technique.
Tip: Read the scenario, attempt your own score, then reveal the worked solution to check your reasoning.
Score Interpretation Guide
Score 0
Delirium or severe cognitive impairment unlikely
Score 1-3
Possible cognitive impairment
Score 4+
Possible delirium ± cognitive impairment
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