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Neurology
Calculate the NIH Stroke Scale (NIHSS) to quantify stroke severity. Mild ≤4, Moderate 5–15, Severe 16–20, Very Severe >20. Guides IV tPA eligibility and acute stroke unit treatment decisions.
Formula
NIHSS = sum of 15 items (range 0–42)
Inputs
Neurology
Calculate the ABCD² score to estimate stroke risk after TIA. Score 6–7: 8.1% two-day risk. Score 4–5: 4.1%. Score 0–3: 1.0%. Guides inpatient admission vs expedited outpatient workup.
Formula
ABCD² = Age(0–1) + BP(0–1) + Clinical(0–2) + Duration(0–2) + Diabetes(0–1)
Inputs