NIHSS Stroke Scale Calculator

Total NIHSS Score: 0

Select the scores for each item above to calculate the result.

Interpretation: <5 (Minor), 5-15 (Moderate), 16-20 (Mod-Severe), >20 (Severe)

1a. Level of Consciousness

0: Alert. (Conscious, responsive)

1: Drowsy. (Arousable by minor stimulation, obeys commands)

2: Stuporous. (Requires repeated or strong stimulation to make movements)

3: Coma. (Unresponsive or responds only with reflex motor/autonomic activity)

1b. LOC Questions (Month & Age)

0: Answers both.

1: Answers one.

2: Answers neither/Untestable.

1c. LOC Commands (Open/Close Eyes, Grip/Release Hand)

0: Obeys both.

1: Obeys one.

2: Obeys neither/Untestable.

2. Best Gaze

0: Normal.

1: Partial Gaze Palsy. (Abnormality of gaze but forced deviation or total paralysis not present)

2: Forced Deviation. (Forced deviation, not overcome by the oculocephalic maneuver)

3. Visual

0: No Visual Loss.

1: Partial Hemianopia. (Clearly abnormal, including quadrantanopia)

2: Complete Hemianopia.

3: Bilateral Blindness. (Including total visual loss in both eyes)

4. Facial Palsy

0: Normal. (Symmetrical)

1: Minor Paralysis. (Flattened nasolabial fold, asymmetry on smiling)

2: Partial Paralysis. (Total or near total paralysis of lower face)

3: Complete Paralysis. (Absence of movement in the upper and lower face)

5a. Motor Arm Left

0: No Drift. (Holds 90° for 10 seconds)

1: Drift. (Drifts, but does not hit bed)

2: Falls to Bed. (Some effort against gravity, but cannot sustain)

3: No effort/Flicker. (No effort against gravity, just a flicker or trace movement)

4: No Movement.

UN: Untestable/Amputation.

6a. Motor Leg Left

0: No Drift. (Holds 30° for 5 seconds)

1: Drift. (Drifts, but does not hit bed)

2: Falls to Bed. (Some effort against gravity, but cannot sustain)

3: No effort/Flicker.

4: No Movement.

UN: Untestable/Amputation.

7. Limb Ataxia (Finger-to-Nose, Heel-to-Shin)

0: Absent.

1: Present in one limb.

2: Present in two limbs.

UN: Untestable. (e.g., Joint fusion, amputation)

8. Sensory

0: Normal. (No sensory loss)

1: Mild-to-Moderate Loss. (Patient feels touch/pinprick is less sharp or dull on affected side)

2: Severe-to-Total Loss. (Patient is not aware of being touched in affected areas)

9. Best Language (Aphasia)

0: Normal. (No aphasia)

1: Mild-to-Moderate Aphasia. (Some limitation in expressing or understanding)

2: Severe Aphasia. (All communication is fragmentary or restricted)

3: Mute/Global Aphasia. (No speech or auditory comprehension)

10. Dysarthria

0: Normal. (Clear articulation)

1: Mild-to-Moderate. (Slurring, but understood with some difficulty)

2: Severe. (Speech unintelligible or virtually mute)

UN: Untestable. (e.g., Intubated)

11. Extinction and Inattention (Neglect)

0: No Neglect. (Normal)

1: Visual, Tactile, Auditory, or Spatial Neglect to one modality.

2: Profound Neglect. (Complete loss of one side of the world, ignores entire visual/sensory field)

NIHSS Stroke Scale

Total NIHSS Score: 0

1a. Level of Consciousness

1b. LOC Questions (Month & Age)

1c. LOC Commands (Open/Close Eyes, Grip/Release Hand)

2. Best Gaze

3. Visual

4. Facial Palsy

5a. Motor Arm Left

5b. Motor Arm Right

6a. Motor Leg Left

6b. Motor Leg Right

7. Limb Ataxia (Finger-to-Nose, Heel-to-Shin)

8. Sensory

9. Best Language (Aphasia)

10. Dysarthria

11. Extinction and Inattention (Neglect)

Total NIHSS Score: 0

1a. Level of Consciousness

1b. LOC Questions (Month & Age)

1c. LOC Commands (Open/Close Eyes, Grip/Release Hand)

2. Best Gaze

3. Visual

4. Facial Palsy

5a. Motor Arm Left

5b. Motor Arm Right

6a. Motor Leg Left

6b. Motor Leg Right

7. Limb Ataxia (Finger-to-Nose, Heel-to-Shin)

8. Sensory

9. Best Language (Aphasia)

10. Dysarthria

11. Extinction and Inattention (Neglect)

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