1. What is the NIHSS? The National Institutes of Health Stroke Scale is a
standardized neurological examination tool used to quantitatively measure
stroke-related neurological deficits. It assesses the severity of acute stroke and
helps guide treatment decisions.
2. How many items does the NIHSS assess? The NIHSS consists of 11 items
that evaluate different aspects of neurological function.
3. What is the total possible score range on the NIHSS? The total score
ranges from 0 to 42, with higher scores indicating more severe neurological
impairment.
4. Who can administer the NIHSS? The NIHSS should be administered by
trained healthcare professionals, typically physicians, nurses, or other clinicians
who have completed certification training.
5. How long does it take to complete the NIHSS? The assessment typically
takes less than 10 minutes to complete when performed by an experienced
examiner.
Clinical Applications
6. What is the primary purpose of the NIHSS? The NIHSS is primarily used
to assess stroke severity, guide acute treatment decisions (particularly
thrombolytic therapy eligibility), predict patient outcomes, and monitor
neurological changes over time.
7. What NIHSS score typically indicates a mild stroke? A score of 1-4
generally indicates a minor or mild stroke.
, 8. What NIHSS score suggests a moderate stroke? Scores between 5-15
typically represent moderate stroke severity.
9. What NIHSS score indicates a severe stroke? Scores of 16-20 suggest
moderate to severe stroke, while scores above 20 indicate severe stroke.
10. Can the NIHSS predict stroke outcomes? Yes, higher baseline NIHSS
scores are associated with worse functional outcomes, higher mortality rates,
and lower likelihood of independent recovery.
11. What does Item 1a assess? Item 1a evaluates the level of consciousness by
testing the patient's responsiveness and alertness.
12. What is tested in Item 1b? Item 1b assesses level of consciousness
questions, asking the patient their age and the current month.
13. What does Item 1c evaluate? Item 1c tests level of consciousness
commands, asking the patient to open/close their eyes and grip/release their
hand.
14. What is assessed in Item 2? Item 2 evaluates best gaze, testing horizontal
eye movements to detect gaze deviation or palsy.
15. What does Item 3 examine? Item 3 assesses visual fields to detect
hemianopia or other visual field defects.
16. What is tested in Item 4? Item 4 evaluates facial palsy by observing facial
symmetry and movement when the patient smiles or shows teeth.
17. What do Items 5a and 5b assess? Items 5a and 5b test motor function of
the left and right arms respectively, evaluating for drift or weakness.
18. What do Items 6a and 6b evaluate? Items 6a and 6b assess motor function
of the left and right legs, testing for drift or weakness.
19. What is examined in Item 7? Item 7 tests for limb ataxia, evaluating
coordination through finger-to-nose and heel-to-shin tests.
20. What does Item 8 assess? Item 8 evaluates sensation, testing for sensory
loss using pinprick or other sensory stimuli.
21. What is tested in Item 9? Item 9 assesses best language function,
evaluating for aphasia through naming, reading, and comprehension tasks.
standardized neurological examination tool used to quantitatively measure
stroke-related neurological deficits. It assesses the severity of acute stroke and
helps guide treatment decisions.
2. How many items does the NIHSS assess? The NIHSS consists of 11 items
that evaluate different aspects of neurological function.
3. What is the total possible score range on the NIHSS? The total score
ranges from 0 to 42, with higher scores indicating more severe neurological
impairment.
4. Who can administer the NIHSS? The NIHSS should be administered by
trained healthcare professionals, typically physicians, nurses, or other clinicians
who have completed certification training.
5. How long does it take to complete the NIHSS? The assessment typically
takes less than 10 minutes to complete when performed by an experienced
examiner.
Clinical Applications
6. What is the primary purpose of the NIHSS? The NIHSS is primarily used
to assess stroke severity, guide acute treatment decisions (particularly
thrombolytic therapy eligibility), predict patient outcomes, and monitor
neurological changes over time.
7. What NIHSS score typically indicates a mild stroke? A score of 1-4
generally indicates a minor or mild stroke.
, 8. What NIHSS score suggests a moderate stroke? Scores between 5-15
typically represent moderate stroke severity.
9. What NIHSS score indicates a severe stroke? Scores of 16-20 suggest
moderate to severe stroke, while scores above 20 indicate severe stroke.
10. Can the NIHSS predict stroke outcomes? Yes, higher baseline NIHSS
scores are associated with worse functional outcomes, higher mortality rates,
and lower likelihood of independent recovery.
11. What does Item 1a assess? Item 1a evaluates the level of consciousness by
testing the patient's responsiveness and alertness.
12. What is tested in Item 1b? Item 1b assesses level of consciousness
questions, asking the patient their age and the current month.
13. What does Item 1c evaluate? Item 1c tests level of consciousness
commands, asking the patient to open/close their eyes and grip/release their
hand.
14. What is assessed in Item 2? Item 2 evaluates best gaze, testing horizontal
eye movements to detect gaze deviation or palsy.
15. What does Item 3 examine? Item 3 assesses visual fields to detect
hemianopia or other visual field defects.
16. What is tested in Item 4? Item 4 evaluates facial palsy by observing facial
symmetry and movement when the patient smiles or shows teeth.
17. What do Items 5a and 5b assess? Items 5a and 5b test motor function of
the left and right arms respectively, evaluating for drift or weakness.
18. What do Items 6a and 6b evaluate? Items 6a and 6b assess motor function
of the left and right legs, testing for drift or weakness.
19. What is examined in Item 7? Item 7 tests for limb ataxia, evaluating
coordination through finger-to-nose and heel-to-shin tests.
20. What does Item 8 assess? Item 8 evaluates sensation, testing for sensory
loss using pinprick or other sensory stimuli.
21. What is tested in Item 9? Item 9 assesses best language function,
evaluating for aphasia through naming, reading, and comprehension tasks.
