The 4 A’s Test for Delirium Screening diagnoses delirium in older patients.

The 4AT consists of four items: (1) alertness, (2) Abbreviated Mental Test-4 (AMT-4), (3) attention (Months Backwards test), and (4) acute change or fluctuating course. Items 1 and 4 are graded 0 (negative) or 4 (positive), while items 2 and 3 are graded 0, …

4AT user guide. The 4AT has 4 items, each of which begins with an ‘A’: 1. Alertness. 2. AMT4: Abbreviated Mental Test - 4. 3. Attention: Months of the Year Backwards. 4. Acute change or fluctuating course. The 4AT does not require special training.

What is the 4AT? The 4AT or 4 ’A’s Test is a simple and short (<2 min) delirium detection tool purposely designed for easy clinical use. It does not require special training. The 4AT is the most validated delirium tool in the literature, with 33 diagnostic test accuracy studies involving >6000 patients. It is highly sensitive and specific.

2021年4月26日 · The 4AT (4 ‘A’s Test) is a brief tool for delirium detection, designed for use in clinical practice. It has been validated in 17 studies in over 3,700 patients. The test is currently used in specialist palliative care units, but has not been validated in this setting.

2019年4月30日 · A 4AT total score of 0 indicates that delirium or cognitive impairment is unlikely; a score between 1 and 3 indicates possible cognitive impairment (corresponding to standalone dementia screening tools) and a score ≥ 4 is suggestive of delirium.

The 4AT is a screening instrument designed for rapid and sensitive initial assessment of cognitive impairment and delirium. A score of 4 or more suggests delirium but is not diagnostic: more detailed assessment of mental status may be required to reach a

2019年7月24日 · The 4 ‘A’s Test (4AT, www.the4AT.com) is a short delirium assessment tool designed for routine use without special training. The primary objective was to assess the accuracy of the 4AT for delirium detection. The secondary objective was to compare the 4AT with another commonly used delirium assessment tool, the Confusion Assessment Method (CAM).

Difference in proportions is for 4AT – CAM. Youden’s Index is equal to sensitivity + specificity – 1: a value of zero indicates no value, and a value of 1 indicates a perfect test. Copyright © Queen’s Printer and Controller of HMSO 2019.

4AT calculate a score which helps in delirium detection. It takes less than 2 minutes to complete.