The 4 'A's Test (4AT) is a bedside medical scale used to help determine if a person has positive signs for delirium. [1] [2] The 4AT also includes cognitive test items, making it suitable also for use as a rapid test for cognitive impairment. [3]

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.

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

明显5at是最差的，还不如6at、8at，甚至比9at、10at都差，实现5个挡位所需的齿轮机构、离合器/制动比14at都多，非常不合算。因此，5at想做到体积重量小，十分困难，肯定在at变速箱的技术迭代中首先被淘汰。

2023年1月1日 · In this study, three kinds of catalysts (acid oxide (SiO 2), alkaline oxide (PbO), amphoteric oxide (MnO 2)) are mixed with 5AT by means of ball milling, which is for the purpose of investigating the effect of multi-type oxides on the catalytic pyrolysis behaviors about 5AT. The TG test is conducted to analyze the thermal behaviors and the ...

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

Download the 4AT delirium assessment tool in PDF or Word format. Free access to this widely-used screening tool for healthcare professionals.

2025年3月1日 · 5-Amino-1H-Tetrazole （5AT）, a green energetic substance, has been used in propellants, pyrotechnics, and gas generators because of its high energy density and low sensitivity. However, inferior combustion performance prevents its further applications.

In this paper, five kinds of oxidizers (Ammonium perchlorate (AP), Sodium perchlorate (NaClO 4), Ammonium nitrate (AN), Manganese oxide (MnO 2), and Chromic oxide (Cr 2 O 3)) are mixed with 5AT for investigating the catalytic effects of multi-type oxidizers on 5AT.

In this study, three kinds of catalysts (acid oxide (SiO 2), alkaline oxide (PbO), amphoteric oxide (MnO 2)) are mixed with 5AT by means of ball milling, which is for the purpose of investigating the effect of multi-type oxides on the catalytic pyrolysis behaviors about 5AT. The TG test is conducted to analyze the thermal behaviors and the ...