Glasgow Coma Scale (GCS) is made up of which of the following components?

Appeared in: IGNOU PB Bsc Entrance-2022

Explanation

The Glasgow Coma Scale (GCS) is a standardized tool for assessing a patient's level of consciousness.
It is composed of three distinct behavioral assessments: Eye Opening (E), Verbal Response (V), and Motor Response (M).
Each component is scored separately, and the total score provides a snapshot of the patient's neurological status.
This option correctly identifies all three and only the three official components of the GCS.

Option A: This option incorrectly includes 'limb power'.
Option C: This option incorrectly includes 'pupil reaction'.
Option D: This option is redundant ('limb response' and 'motor response') and omits the 'verbal response' component.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Components of the Glasgow Coma Scale (GCS) as background academic context rather than a clinical decision trigger.
A key clinical rule of thumb is "GCS of 8, intubate." A score of 8 or less indicates a severe brain injury and the patient's inability to protect their own airway, necessitating immediate intervention.
Nurses should always document the individual GCS components (e.g., E4 V5 M6) rather than just the total score (15). This provides a more detailed picture of the patient's status and allows for better tracking of subtle neurological changes.
What if the patient is intubated and cannot provide a verbal response? The verbal score is marked as 'VT' (Verbal-Tube), and the total score is not calculated. Instead, the focus is on trending the eye and motor scores independently.

How to Approach the Question

First, identify the core subject of the question, which is the Glasgow Coma Scale (GCS).
Recall the fundamental purpose of the GCS: to assess the level of consciousness.
Access your memory for the three specific categories the GCS evaluates. A common mnemonic is 'EVM' (Eye, Verbal, Motor).
Systematically review each option, comparing it against the 'EVM' components.
Eliminate options that introduce elements not part of the GCS (like 'limb power' or 'pupil reaction') or omit one of the core components.
Select the option that perfectly matches the three established components: Eye opening, motor response, and verbal response.

Concept Tested & Keywords

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E6 Nursing Fundamentals Taylor p. 412-414

E6 Medicine Harrison 22e Part 2 p. 1475-1477

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