APEX NIHSS Group B Answer Key with Severity
Classification – Patients 1 through 6 (Updated 2026)
Scoring Key for Severity Classification
0 = Normal / No deficit
1–4 = Minor deficit
5–15 = Moderate deficit
16–20 = Moderate to severe deficit
21–42 = Severe deficit
Patient 1
1a: 0 – Alert
1b: 1 – Answers one question correctly
1c: 0 – Performs both tasks correctly
2: 0 – Normal
3: 0 – No visual loss
4: 1 – Minor paralysis
5a (Left Arm): 0 – No drift
5b (Right Arm): 4 – No movement
6a (Left Leg): 0 – No drift
6b (Right Leg): 3 – No effort against gravity; limb falls
7: 0 – No ataxia
8: 1 – Mild to moderate sensory loss
9: 1 – Mild to moderate aphasia
10: 0 – Normal
11: 1 – Inattention
Total Score: 11 – Moderate deficit
Patient 2
1a: 0 – Alert
1b: 1 – Answers one correctly
1c: 0 – Performs both tasks correctly
2: 0 – Normal
3: 0 – No visual loss
4: 1 – Minor paralysis
5a (Left Arm): 0 – No drift
5b (Right Arm): 0 – No drift
6a (Left Leg): 0 – No drift
6b (Right Leg): 2 – Some effort against gravity; limb cannot get to or maintain position
7: 0 – No ataxia
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Classification – Patients 1 through 6 (Updated 2026)
Scoring Key for Severity Classification
0 = Normal / No deficit
1–4 = Minor deficit
5–15 = Moderate deficit
16–20 = Moderate to severe deficit
21–42 = Severe deficit
Patient 1
1a: 0 – Alert
1b: 1 – Answers one question correctly
1c: 0 – Performs both tasks correctly
2: 0 – Normal
3: 0 – No visual loss
4: 1 – Minor paralysis
5a (Left Arm): 0 – No drift
5b (Right Arm): 4 – No movement
6a (Left Leg): 0 – No drift
6b (Right Leg): 3 – No effort against gravity; limb falls
7: 0 – No ataxia
8: 1 – Mild to moderate sensory loss
9: 1 – Mild to moderate aphasia
10: 0 – Normal
11: 1 – Inattention
Total Score: 11 – Moderate deficit
Patient 2
1a: 0 – Alert
1b: 1 – Answers one correctly
1c: 0 – Performs both tasks correctly
2: 0 – Normal
3: 0 – No visual loss
4: 1 – Minor paralysis
5a (Left Arm): 0 – No drift
5b (Right Arm): 0 – No drift
6a (Left Leg): 0 – No drift
6b (Right Leg): 2 – Some effort against gravity; limb cannot get to or maintain position
7: 0 – No ataxia
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