ROSIER Score Calculator

ROSIER Score Calculator

Recognition of Stroke In the Emergency Room

Criteria for Scoring

Stroke Mimics (Score: -1 each)

1. Loss of Consciousness / Syncope?

2. Seizure Activity?

Stroke Features (Score: +1 each)

3. New, Sudden Onset Headache?

4. Unilateral Arm/Leg Weakness?

5. Speech Disturbance?

6. Visual Field Defect?

About the ROSIER Score

The ROSIER (Recognition of Stroke In the Emergency Room) scale is a validated tool designed to identify patients presenting to the Emergency Department who are most likely to have had a stroke or TIA, guiding prompt diagnosis and management.

Interpretation Guide:

  • Score > 0: Indicates a high probability of stroke. These patients require urgent diagnostic imaging and specialist referral.
  • Score = 0: The probability of stroke is lower, but still warrants further investigation, especially if clinical suspicion remains high.
  • Score < 0: Stroke is unlikely. The symptoms are more likely to be due to stroke mimics like syncope or seizure.

Source: The ROSIER score was developed and validated in the UK, demonstrating high sensitivity for stroke detection in the pre-hospital and emergency setting.

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