4AT

Question 1

What does it assess

Answer 1

Delirium

Question 2

Step 1

Answer 2

Alertness

Question 3

Alertness criteria (3)

Answer 3

Normal (fully alert and not agitated)
Mild sleepiness <10 secs after waking then normal
Clearly abnormal

Question 4

Alertness score - normal

Answer 4

0

Question 5

Alertness score - mild

Answer 5

0

Question 6

Alertness score - abnormal

Answer 6

4

Question 7

Step 2

Answer 7

AMT4

Question 8

How to assess AMT4

Answer 8

Age
DOB
Name of hospital/building
Current year

Question 9

AMT4 criteria

Answer 9

No mistakes
1 mistake
2 or more mistakes or untestable

Question 10

AMT4 score - no mistakes

Answer 10

0

Question 11

AMT4 score - 1 mistake

Answer 11

1

Question 12

AMT4 score - 2+ mistakes

Answer 12

2

Question 13

Step 3

Answer 13

Attention

Question 14

How to assess attention

Answer 14

List months of year backwards

Question 15

Attention criteria

Answer 15

7 months or more correctly
Starts, but scores <7 months/refuses to start
Untestable

Question 16

Attention score - 7 months or more correctly

Answer 16

0

Question 17

Attention score - Starts, but scores <7 months/refuses to start

Answer 17

1

Question 18

Attention score - untestable

Answer 18

2

Question 19

Step 4

Answer 19

Acute change or fluctuating course

Question 20

How to assess acute change or fluctuating course

Answer 20

Evidence of significant change or fluctuation in alertness, cognition

Question 21

Acute change or fluctuating course score - no

Answer 21

0

Question 22

Acute change or fluctuating course score - yes

Answer 22

4

Question 23

What score indicates delirium

Answer 23

4 or above

Question 24

What score indicates possible cognitive impairment

Answer 24

1-3