القائمة
Extract and calculate Glasgow Coma Scale (GCS) for ICU patients. Use for neurological assessment, consciousness monitoring, or trauma severity scoring.
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| name | gcs-calculation |
| description | Extract and calculate Glasgow Coma Scale (GCS) for ICU patients. Use for neurological assessment, consciousness monitoring, or trauma severity scoring. |
| tier | validated |
| category | clinical |
The Glasgow Coma Scale assesses level of consciousness through three components: Eye opening, Verbal response, and Motor response. This concept extracts and calculates GCS with special handling for intubated patients.
In M4Bench, target concept tables listed in the task configuration are removed or unavailable in the agent database. Use this skill as procedural guidance and derive the requested output from available source or intermediate tables; do not rely on a precomputed target table or bundled SQL script.
| Response | Score 1 | Score 2 | Score 3 | Score 4 | Score 5 | Score 6 |
|---|---|---|---|---|---|---|
| Eye | None | To pain | To speech | Spontaneous | - | - |
| Verbal | None | Incomprehensible | Inappropriate | Confused | Oriented | - |
| Motor | None | Extension | Flexion | Withdraws | Localizes | Obeys |
Total GCS Range: 3-15 (lower = worse)
| Component | Item ID | Description |
|---|---|---|
| Verbal | 223900 | GCS - Verbal Response |
| Motor | 223901 | GCS - Motor Response |
| Eyes | 220739 | GCS - Eye Opening |
Intubated Patients: When verbal response is documented as "No Response-ETT" (endotracheal tube), the verbal component is set to 0 (not 1, not 5) and flagged with gcs_unable = 1. The total GCS is then set to 15 (assumed normal if only intubation prevents assessment). Important: report gcs_verbal = 0 in the output — do NOT replace it with 5. The value 0 is a sentinel meaning "untestable."
Component Carry-Forward: If only one or two components are documented at a time, previous values from the past 6 hours are carried forward. This prevents artificially low scores from incomplete charting.
Calculation Logic:
GCS = Motor + Verbal + Eyes
IF current verbal = 0 (intubated) THEN GCS = 15 (but keep gcs_verbal = 0 in output)
ELSE IF previous verbal = 0 THEN use current components only (don't carry forward)
ELSE carry forward missing components from past 6 hours
Sedated Patients: Per SAPS-II guidelines, sedated patients should use pre-sedation GCS. In practice, if documented as "unable to score due to medication", this is flagged.
Time Series: Each row represents a charted observation, not an hourly aggregate. Multiple observations per hour are possible.