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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Expert Rev Mol Diagn. 2020 Jul 5;20(8):771–788. doi: 10.1080/14737159.2020.1777859

Table 2.

National Institutes of Health Stroke Scale (NIHSS) [20].

Question Response Score
1a. Level of consciousness 0= alert, 1=not alert, 2 = obtunded, 3 = unresponsive
1b. Level of consciousness questions 0 = answers both questions correctly, 1= answers one question correctly,
2 = answers neither correctly
1b. Level of consciousness commands 0 = performs both tasks correctly, 1 = performs one task correctly
2 = performs neither task correctly
2. Gaze 0 = normal, 1 = partial gaze palsy, 2 = total gaze palsy
3. Visual fields 0 = no visual loss, 1= partial hemianopsia, 2 = complete hemianopsia, 3 = bilateral hemianopsia
4. Facial palsy 0 = normal, 1 = minor paralysis, 2 = partial paralysis, 3 = complete paralysis
5. Motor arm
 (a) Left
 (b) Right
0 = no drift, 1 = drifts before 5s, 2 = falls before 10s, 3 = no effort against gravity, 4 = no movement
6. Motor leg
 (a) Left
  (b) Right
0 = no drift, 1= drifts before 5s, 2 = falls before 10s, 3 = no effort against gravity, 4 = no movement
7. Ataxia 0 = Absent, 1 = 1 limb, 2 = 2 limbs
8. Sensory 0 = normal, 1= mild loss, 2 = severe loss
9. Language 0 = normal, 1 = mild aphasia, 2 = severe aphasia, 3 = mute or global aphasia
10. Dysarthria 0 = normal, 1= mild, 2 = severe
11. Extinction/inattention 0 = normal, 1= mild, 2 = severe