Glasgow Coma Scale with Pupil Response (GCS-P)

Glasgow Coma Scale combined with pupil reactivity (GCS-P, 1–15).

For educational and clinical reference. Not a substitute for medical judgment. See the medical disclaimer.
Score
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Interpretation
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References

  1. Brennan PM, Murray GD, Teasdale GM. Simplifying the use of prognostic information in traumatic brain injury. Part 1: The GCS-Pupils score. J Neurosurg. 2018;128(6):1612-1620.
  2. Teasdale G, Jennett B. Assessment of coma and impaired consciousness. Lancet. 1974;2(7872):81-84.

How to use

  1. Assess eye opening (E), verbal response (V), motor response (M).
  2. Subtract the pupil reactivity score (0 / 1 / 2).
  3. Total GCS-P (1–15) and interpretation update instantly.

Frequently asked questions

What is GCS-P?

The Glasgow Coma Scale-Pupils score combines the GCS (3–15) with a pupil reactivity score (0, −1, or −2). GCS-P = GCS − Pupil Reactivity Score.

Why subtract pupil reactivity?

Unreactive pupils correlate with worse outcomes in traumatic brain injury, especially at the severe end of the GCS scale. GCS-P preserves the prognostic information of pupil reactivity.

GCS-P range?

1 (worst) to 15 (best). A GCS of 3 with both pupils unreactive yields GCS-P = 1.

Does GCS-P replace GCS?

GCS remains the cornerstone for tracking neurologic exam over time. GCS-P augments it for prognostication, particularly in TBI.

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