Prueba de las 4 A para cribado de delirium (4AT)
Score this item from direct observation during the bedside assessment.
Use the four official questions: age, date of birth, place, and current year.
Use months of the year backwards starting at December.
Clinical noticeEducational delirium-screening support only. It does not replace individual clinical assessment or formal diagnosis.
Context and use
4AT = alertness (0 or 4) + AMT4 (0/1/2) + attention with months backwards (0/1/2) + acute or fluctuating change (0 or 4)
Total score 0-12. Official interpretation: 0 unlikely delirium or moderate-severe cognitive impairment; 1-3 possible cognitive impairment; >=4 possible delirium.
