The NIH Stroke Scale (NIHSS) answers for Group A are a key resource for clinicians, students, and anyone preparing for stroke certification exams. Understanding how each item is scored and what the correct responses look like helps ensure reliable neurological assessments in acute stroke care. Below is a practical guide that explains the NIHSS, breaks down Group A items, provides sample answers, and offers practical tips for using the scale effectively in real‑world settings That's the whole idea..
What Is the NIH Stroke Scale?
The NIH Stroke Scale is a standardized 11‑item neurological examination designed to quantify the severity of deficits caused by an acute stroke. Each item evaluates a specific function—such as level of consciousness, gaze, visual fields, facial palsy, motor strength, limb ataxia, sensory loss, language, dysarthria, and inattention—and assigns a score from 0 (normal) to a maximum that reflects the worst possible impairment. The total score ranges from 0 to 42, with higher numbers indicating more severe stroke impact.
Why the NIHSS matters
- Provides an objective baseline for tracking neurological change over time.
- Guides treatment decisions, including eligibility for thrombolysis or endovascular therapy.
- Facilitates communication among multidisciplinary teams using a common language.
- Serves as a research endpoint in clinical trials and quality‑improvement initiatives.
Overview of NIHSS Groups (A, B, and C)
To maintain test security and prevent rote memorization, the NIHSS certification program offers three equivalent versions of the scale: Group A, Group B, and Group C. Each group contains the same 11 items but uses different stimulus materials (pictures, sentences, and commands) so that examiners cannot simply recall answers from a previous attempt. All groups are psychometrically equivalent; a score of 10 in Group A carries the same clinical meaning as a score of 10 in Group B or Group C.
Purpose of grouping
- Reduces cheating during online recertification.
- Allows repeated testing without inflating scores due to familiarity.
- Ensures that clinicians truly understand the scoring criteria rather than memorizing a key.
NIHSS Group A Items and Scoring
Below is each of the 11 NIHSS items as they appear in Group A, together with the scoring criteria. Familiarity with these definitions is essential before attempting to answer practice questions.
| Item | Description (Group A Stimulus) | Scoring (0‑max) |
|---|---|---|
| 1a. On the flip side, level of Consciousness: Responsiveness | Ask the patient to open eyes and respond to verbal command. Even so, | 0 = alert; 1 = drowsy but arousable; 2 = stuporous; 3 = comatose |
| 1b. Level of Consciousness: Questions | Ask month and age. | 0 = both correct; 1 = one correct; 2 = neither correct |
| 1c. Level of Consciousness: Commands | Ask to open and close eyes, then grip and release non‑paretic hand. In practice, | 0 = both correct; 1 = one correct; 2 = neither correct |
| 2. Best Gaze | Horizontal eye movements tested by asking patient to follow examiner’s finger to left and right. | 0 = normal; 1 = partial gaze palsy; 2 = forced deviation |
| 3. Visual Fields | Confrontation testing using finger counting in each quadrant. Day to day, | 0 = no visual loss; 1 = partial hemianopia; 2 = complete hemianopia; 3 = bilateral hemianopia (cortical blindness) |
| 4. Facial Palsy | Show teeth or raise eyebrows; observe symmetry. | 0 = normal; 1 = minor paralysis; 2 = partial paralysis; 3 = complete paralysis |
| 5a. That said, motor Arm – Left | Ask patient to extend arm 90° (if sitting) or 45° (if supine) and hold for 10 seconds. | 0 = no drift; 1 = drift before 10 s but does not hit bed; 2 = falls before 5 s; 3 = no effort against gravity; 4 = no movement |
| 5b. Motor Arm – Right | Same as 5a for the right arm. | Same scoring as 5a |
| 6a. Motor Leg – Left | Ask patient to lift leg 30° (if supine) and hold for 5 seconds. Practically speaking, | 0 = no drift; 1 = drift before 5 s but does not hit bed; 2 = falls before 5 s; 3 = no effort against gravity; 4 = no movement |
| 6b. In practice, motor Leg – Right | Same as 6a for the right leg. | Same scoring as 6a |
| 7. Limb Ataxia | Finger‑nose‑finger test (or heel‑to‑shin if unable to perform upper limb). | 0 = absent; 1 = present in one limb; 2 = present in two limbs |
| 8. Plus, sensory | Pinprick stimulation of face, arm, leg on both sides; compare sharp vs. In real terms, dull. | 0 = normal; 1 = mild‑to‑moderate loss; 2 = severe to total loss |
| 9. Best Language | Describe a picture (the “cookie‑theft” scene in Group A) and name items on a naming sheet. So naturally, | 0 = no aphasia; 1 = mild‑to‑moderate aphasia; 2 = severe aphasia; 3 = mute, global aphasia |
| 10. Dysarthria | Patient reads a standard list of words; examiner rates clarity. Even so, | 0 = normal; 1 = mild‑to‑moderate dysarthria; 2 = severe dysarthria |
| 11. Extinction and Inattention | Double simultaneous stimulation (touch, visual, auditory) to assess neglect. |
NIHSS Group A Answers (Sample Scenarios)
To illustrate how the scoring works in practice, consider the following hypothetical patient presentations. For each item, the correct Group A answer (score)
NIHSS Group A Answers (Sample Scenarios) – Continued
Below are concise vignettes that illustrate how each item is scored in practice. For each scenario, the examiner’s observation is noted, followed by the corresponding NIHSS score (the “Group A answer”). These examples assume the patient is able to cooperate unless otherwise stated Not complicated — just consistent..
| Item | Scenario Description | Observed Finding | NIHSS Score |
|---|---|---|---|
| 1a. Because of that, level of Consciousness: Responsiveness | The patient opens eyes spontaneously when spoken to, follows simple commands, and appears alert. | Alert, responsive to verbal stimuli. | 0 |
| 1b. Level of Consciousness: Questions | Asked “What month is it?Day to day, ” and “How old are you? On the flip side, ” The patient answers “July” correctly but says “I’m 45” when actually 68. Even so, | One question answered correctly. | 1 |
| 1c. That said, level of Consciousness: Commands | Patient is asked to open and close eyes, then to grip and release the non‑paretic hand. They open/close eyes correctly but cannot grip/release the hand. | One of the two commands performed correctly. That's why | 1 |
| 2. So naturally, best Gaze | When the examiner moves a finger horizontally, the patient’s eyes deviate to the left and cannot be brought past midline; however, with vigorous effort they can look toward the right. | Forced deviation to the left with inability to overcome. That said, | 2 |
| 3. Visual Fields | Confrontation testing shows the patient cannot see fingers presented in the left upper and lower quadrants of both eyes, but perceives stimuli in the right visual field. Worth adding: | Complete left homonymous hemianopia. Practically speaking, | 2 |
| 4. Facial Palsy | The patient smiles; the left side of the mouth does not rise, while forehead wrinkling is symmetric when asked to raise eyebrows. That said, | Lower face weakness only (minor paralysis). | 1 |
| 5a. Motor Arm – Left | The left arm is held at 90° (sitting) and begins to drift downward after ~4 seconds, never touching the bed. | Drift before 10 s but does not hit bed. So | 1 |
| 5b. Think about it: motor Arm – Right | The right arm cannot be lifted against gravity; the patient shows no effort when asked to extend the arm. | No effort against gravity. | 3 |
| 6a. Motor Leg – Left | The left leg lifts to 30° but falls to the bed after 2 seconds. | Falls before 5 s. | 2 |
| 6b. Here's the thing — motor Leg – Right | The right leg remains stationary; the patient makes no attempt to lift it despite encouragement. Day to day, | No movement. | 4 |
| 7. Still, limb Ataxia | Finger‑nose‑finger testing reveals past‑pointing in the right hand; the left hand performs normally. Heel‑to‑shin is intact bilaterally. In practice, | Ataxia present in one limb. On top of that, | 1 |
| 8. On top of that, sensory | Pinprick on the left face, arm, and leg is perceived as dull; the right side senses sharp normally. | Mild‑to‑moderate sensory loss on the left. | 1 |
| 9. Best Language | The patient describes the cookie‑theft picture with short, telegraphic phrases (“boy… cookie… jar…”) and names only 2 of 10 items on the naming sheet. | Moderate aphasia. | 1 |
| 10. On the flip side, dysarthria | While reading the standard word list, speech is slurred but intelligible with listener effort. | Mild‑to‑moderate dysarthria. | 1 |
| 11. Extinction and Inattention | Simultaneous tactile stimulation to both hands is perceived only on the right; visual double stimulation is sensed only on the right side. | Unilateral inattention (visual/tactile). |
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How to Use These Samples
- Training: New clinicians can compare their observations against these benchmark answers to calibrate scoring accuracy.
- Quality Assurance: Audit teams can review a random set of NIHSS assessments and verify that scores align with the documented findings.
- Research Consistency: When pooling data across sites, referencing a common set of exemplar scenarios helps minimize inter‑rater variability.
Conclusion
The NIHSS remains the cornerstone for quantifying stroke severity, guiding treatment decisions, and predicting outcomes. That's why mastery of each item—through clear procedural knowledge and repeated practice with illustrative scenarios—ensures that scores reflect the patient’s true neurologic status rather than examiner bias. By internalizing the scoring nuances demonstrated in the Group A examples, clinicians can administer the NIHSS swiftly, reliably, and consistently, ultimately enhancing acute stroke care and facilitating meaningful clinical research.
