The National Institutes of Health Stroke Scale (NIHSS) - Total Score = 0–42
1a—Level of consciousness
0 = Alert; keenly responsive
1 = Not alert, but arousable by minor stimulation
2 = Not alert; requires repeated stimulation
3 = Unresponsive or responds only with reflex
1b—Level of consciousness questions: What is your age? What is the month?
0 = Answers two questions correctly
1 = Answers one question correctly
2 = Answers neither questions correctly
1c—Level of consciousness commands: Open and close your eyes. Grip and release your hand
0 = Performs both tasks correctly
1 = Performs one task correctly
2 = Performs neither task correctly
2—Best gaze
0 = Normal
1 = Partial gaze palsy
2 = Forced deviation
3—Visual
0 = No visual lost
1 = Partial hemianopia
2 =Complete hemianopia
3 =Bilateral hemianopia
4—Facial palsy
0 = Normal symmetric movements
1 = Minor paralysis
2 = Partial paralysis
3 =Complete paralysis of one or both sides
5—Motor arm: Left arm; Right arm
0 = No drift
1 = Drift
2 = Some effort against gravity
3 = No effort against gravity
4 = No movement
6—Motor leg: Left leg | Right leg
0 = No drift
1 = Drift
2 = Some effort against gravity
3 = No effort against gravity
4 = No movement
7—Limb ataxia
0 = Absent
1 = Present in one limb
2 = Present in two limbs
8—Sensory
0 = Normal; no sensory loss
1 = Mild-to-moderate sensory loss
2 = Severe-to-total sensory loss
9—Best language
0 = No aphasia; normal
1 = Mild-to-moderate aphasia
2 = Severe aphasia
3 = Mute; global aphasia
10—Dysarthria
0 = Normal
1 = Mild-to-moderate dysarthria
2 = Severe dysarthria
11—Extinction and inattention
0 = No abnormality
1 = Visual, tactile, auditory, spatial, or personal inattention
2 = Profound hemi-inattention or extinction
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