A 28-year-old man is brought to the emergency department following a road traffic accident with severe head injury. Regarding Glasgow Coma Scale (GCS) scoring and its clinical application in head injury management, all of the following statements are correct EXCEPT:
A. A GCS score of 9–12 is classified as moderate head injury and requires ICU admission and continuous monitoring
B. The motor component of GCS is the most reliable predictor of outcome and prognosis in head injury
C. GCS should be reassessed every 15 minutes in the first hour and then hourly in a patient with head injury
D. A GCS score of 8 or less indicates severe head injury and is an absolute indication for intubation to protect the airway
Explanation
Understanding GCS Scoring in Head Injury
Key Point
The Glasgow Coma Scale (GCS) is the gold standard for assessing level of consciousness in head injury. It comprises three components: eye opening (E), verbal response (V), and motor response (M), each scored independently and then summed (total 3–15).
GCS Classification and Management
Table
GCS Score
Severity
Management
13–15
Mild
Observation, CT head if indicated, discharge if stable
Strong indication for intubation, ICU care, aggressive management
High-YieldNEET PG
A GCS ≤8 is a strong (not absolute) indicator for intubation to protect the airway and prevent aspiration. However, it is not an absolute indication — clinical judgment incorporating respiratory effort, oxygenation status, hemodynamic stability, and anticipated clinical course is always required. ATLS 10th edition and standard neurosurgical guidelines describe GCS ≤8 as a threshold that should prompt serious consideration of intubation, but the decision remains clinical. For example, a patient with GCS 7 due to postictal state who is protecting their airway and maintaining SpO₂ may not require immediate intubation.
The Motor Component — Most Predictive
Clinical Pearl
The motor response component alone is the most reliable single predictor of outcome and mortality in head injury. A patient with motor score of 1 (no response) has significantly worse prognosis than one with motor score 5 or 6. This is well-established in the neurotrauma literature (Teasdale & Jennett, Lancet 1974; ATLS 10e).
Moderate Head Injury (GCS 9–12)
Key Point
Moderate head injury (GCS 9–12) requires:
ICU or high-dependency unit admission
Continuous neurological monitoring
Serial GCS assessments
CT imaging
Consideration for intubation if deterioration occurs
Frequency of GCS Reassessment
Clinical Pearl
Per standard protocols (NICE CG176; ATLS 10e), GCS reassessment in head injury is recommended:
Every 15 minutes for the first 2 hours (not just 1 hour)
Every 30 minutes for the next 2 hours
Hourly thereafter
Immediately if there is any change in clinical status
Option D states reassessment "every 15 minutes in the first hour and then hourly" — while this is a simplified/partially correct statement, it is less incorrect than Option A, which uses the word "absolute indication," a term that is factually inaccurate and potentially dangerous in clinical practice.
Warning
Calling GCS ≤8 an absolute indication for intubation is the most clearly incorrect statement among the options. Clinical context always governs airway management decisions.
Mnemonic
MOTOR-First — Remember that the motor component is the most prognostically valuable part of GCS.
ATLS 10e Ch 4; Harrison 21e Ch 445; NICE Head Injury Guidelines CG176
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