Table 2.

Algorithm for OHE grading^[11]

1. Animal Naming Test (ANT)
List all possible animals in a minute. Number of animals____________
Simplified ANT: if yrs. of instructions < 8, add 3 animals
if yrs. of instructions < 8 add and age > 80, add 6 animals
No HE: > 15 animals
Covert HE (MHE or grade I): 10–15 animals
Overt HE (grade II-IV): < 10 animals
2. Orientation in time
	FALSE	CORRECT
What year are we?
What month are we?
Which day of the week is it?
What is today’s date?
3. Orientation in space
	FALSE	CORRECT
Which country are we in?
Which region are we in?
Which city are we in?
Where are we now?
4. Glasgow Coma Scale		Scores
Eye opening response
The patient does not open eyes		1
The patient opens eyes in response to painful stimuli		2
The patient opens eyes in response to voice		3
The patient opens eyes spontaneously		4
Verbal response
The patient makes no sounds		1
The patient makes incomprehensible sounds		2
The patient pronounces inappropriate words		3
The conversation is confused, disoriented		4
The patient is oriented and converses normally		5
Motor response
The patient makes no movements		1
Extension to painful stimuli (decerebrate response)		2
Abnormal flexion to painful stimuli (decorticate response)		3
Flexion/withdrawal to painful stimuli		4
The patient localizes painful stimuli		5
The patient obeys commands		6
5. Overall assessment results
	Staging
NO HE (grade 0)	Oriented in time
	Oriented in space
	ANT > 15 animals
Covert HE	Oriented in time
	Oriented in space
	ANT 10–15 animals
Overt HE grade II	Disoriented in time
	Oriented in space
Overt HE grade III	Disoriented in time
	Disoriented in space
	GCS = 8–14
Overt HE grade IV (coma)	Disoriented in time
	Disoriented in space
	GCS < 8