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Emergency Medicine · Neurology

Recognition of Stroke in the Emergency Room (ROSIER) Scale calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Result

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0

ROSIER ≤0 — stroke less likely

Band: ROSIER ≤0 — stroke less likely

Interpretation. ROSIER ≤0 — stroke less likely

Suggested management. ROSIER ≤0; stroke less likely but not excluded.

Recognition of Stroke in the Emergency Room (ROSIER) Scale: 0 — ROSIER ≤0 — stroke less likely. Interpretation: ROSIER ≤0 — stroke less likely What to do: ROSIER ≤0; stroke less likely but not excluded. Inputs: Asymmetric facial weakness (+1): false; Asymmetric arm weakness (+1): false; Asymmetric leg weakness (+1): false; Speech disturbance (+1): false; Visual field defect (+1): false; Loss of consciousness or syncope (−1): false; Seizure activity (−1): false Source: Nor AM et al. The Recognition of Stroke in the Emergency Room (ROSIER) scale: development and validation of a stroke recognition instrument. Lancet Neurol. DOI: 10.1016/S1474-4422(05)70201-5. PMID: 16239179. Scope: ROSIER assigns +1 for asymmetric face/arm/leg weakness, speech disturbance, or visual-field defect and −1 for loss of consciousness/syncope or seizure; total −2 to +5; score >0 suggests stroke in the ED recognition pathway. (2005)

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Clinical inputs

  • Asymmetric facial weakness (+1)
  • Asymmetric arm weakness (+1)
  • Asymmetric leg weakness (+1)
  • Speech disturbance (+1)
  • Visual field defect (+1)
  • Loss of consciousness or syncope (−1)
  • Seizure activity (−1)

Primary source

Nor AM et al. The Recognition of Stroke in the Emergency Room (ROSIER) scale: development and validation of a stroke recognition instrument. Lancet Neurol. DOI: 10.1016/S1474-4422(05)70201-5. PMID: 16239179. Scope: ROSIER assigns +1 for asymmetric face/arm/leg weakness, speech disturbance, or visual-field defect and −1 for loss of consciousness/syncope or seizure; total −2 to +5; score >0 suggests stroke in the ED recognition pathway. (2005)

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