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🧠 GCS-Pupils Score (GCS-P)

UseAdd prognostic discrimination at the low end of the GCS.

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SourceBrennan PM, Teasdale GM. J Neurosurg 2018

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

Score + version; reference only — not a substitute for care · no HIS write

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Methodology · worked example, guidelines & full notes
Clinical takeaway

Extends range to 1, capturing the worst injuries.

When to use

Add prognostic discrimination at the low end of the GCS.

How it works

GCS-P = total GCS − Pupil Reactivity Score (both reactive 0, one 1, none 2). Range 1–15.

Key points

  • Extends range to 1, capturing the worst injuries.
  • Improves TBI outcome prediction.
  • Easy bedside extension of the GCS.

References

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

Total GCS10 3–15
Pupils unreactive to lightOne unreactive (−1)

→GCS-P9/15

  • Severity:Moderate
  • Formula:GCS − Pupil Reactivity Score (0/1/2)
Total GCS10 3–15
Pupils unreactive to lightBoth reactive (−0)

→GCS-P10/15

  • Severity:Moderate
  • Formula:GCS − Pupil Reactivity Score (0/1/2)
Verification & sources · governance
FAQ

Frequently asked questions

What are the limits and cautions when using GCS-Pupils Score (GCS-P)?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
Does GCS-Pupils Score (GCS-P) upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is GCS-Pupils Score (GCS-P) calculated in practice? Can you show a worked example?
Inputs: Total GCS 10 3–15, Pupils unreactive to light One unreactive (−1) → Result: GCS-P 9 /15(Severity: Moderate, Formula: GCS − Pupil Reactivity Score (0/1/2)) Inputs: Total GCS 10 3–15, Pupils unreactive to light Both reactive (−0) → Result: GCS-P 10 /15(Severity: Moderate, Formula: GCS − Pupil Reactivity Score (0/1/2))
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