Table 7.

National Institutes of Health Stroke Scale

Tested ItemTitleResponses and Scores
IALevel of consciousness0—Alert
1—Drowsy
2—Obtunded
3—Coma/unresponsive
1BOrientation questions (2)0—Answers both correctly
1—Answers 1 correctly
2—Answers neither correctly
1CResponse to commands (2)0—Performs both tasks correctly
1—Performs 1 task correctly
2—Performs neither
2Gaze0—Normal horizontal movements
1—Partial gaze palsy
2—Complete gaze palsy
3Visual fields0—No visual field defect
1—Partial hemianopia
2—Complete hemianopia
3—Bilateral hemianopia
4Facial movement0—Normal
1—Minor facial weakness
2—Partial facial weakness
3—Complete unilateral palsy
5Motor function (arm)
a. Left
b. Right
0—No drift
1—Drift before 5 seconds
2—Falls before 10 seconds
3—No effort against gravity
4—No movement
6Motor function (leg)
a. Left
b. Right
0—No drift
1—Drift before 5 seconds
2—Falls before 5 seconds
3—No effort against gravity
4—No movement
7Limb ataxia0—No ataxia
1—Ataxia in 1 limb
2—Ataxia in 2 limbs
8Sensory0—No sensory loss
1—Mild sensory loss
2—Severe sensory loss
9Language0—Normal
1—Mild aphasia
2—Severe aphasia
3—Mute or global aphasia
10Articulation0—Normal
1—Mild dysarthria
2—Severe dysarthria
11Extinction or inattention0—Absent
1—Mild (loss 1 sensory modality lost)
2—Severe (loss 2 modalities lost)