How is traumatic brain injury severity categorized by GCS and what are nursing implications?

• A. GCS severity is used to determine care level, with distinct categories.
• B. Mild 13-15, Moderate 9-12, Severe ≤8; higher risk of secondary brain injury; require airway protection, ICP monitoring, and frequent neuro checks.
• C. GCS is not useful in guiding nursing care.
• D. All TBIs require identical care regardless of GCS score.

Answer: (B)

Understanding how Glasgow Coma Scale scores translate into injury severity helps nurses prioritize actions to prevent secondary brain injury. Mild injury is a GCS of 13–15, moderate is 9–12, and severe is 8 or less. As the score drops, the risk of secondary brain injury rises, so nursing care becomes more intensive: protect the airway because reduced consciousness raises the risk of aspiration and airway compromise; be prepared for airway protection, including possible intubation when indicated; use intracranial pressure monitoring as ordered to guide therapy and prevent herniation; perform frequent neuro checks to detect early deterioration and adjust treatment promptly. Even patients with milder scores require ongoing observation since neurologic status can change. Supporting measures that help minimize secondary injury—maintaining adequate oxygenation and perfusion, elevating the head of the bed, avoiding factors that raise ICP—complement the core nursing actions. This reflects why this approach is the best answer: it links severity to appropriate, escalating nursing interventions rather than suggesting uniform care for all TBIs or dismissing the usefulness of GCS in guiding nursing care.