The minimal score possible on the Glasgow Coma Scale is

Appeared in: GMCH - 2015

Explanation

The Glasgow Coma Scale (GCS) assesses level of consciousness using three components: Eye Opening, Verbal Response, and Motor Response.
Each component has a minimum possible score of 1, which signifies a total lack of response in that category.
The total minimum GCS score is calculated by summing the minimum scores of the three components: 1 (Eye) + 1 (Verbal) + 1 (Motor) = 3.
A score of 3 indicates a deep coma or unresponsiveness.

Option A: A score of 1 is the minimum score for each individual component of the GCS (Eye, Verbal, and Motor), but it is not the minimum total score.
Option B: A score of 2 is not the lowest possible sum. The minimum score for each of the three categories is 1, so the sum cannot be less than 3.
Option D: A score of 5 is the maximum score for the Verbal Response component ('Oriented to time, place, person') and a possible score in the Motor Response category ('Localizes pain'). It is not the minimum possible total score.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Glasgow Coma Scale (GCS) Scoring as background academic context rather than a clinical decision trigger.
The GCS is a universal tool for nurses to quickly assess and communicate a patient's neurological status, especially in emergency, ICU, and neurosurgical settings.
A drop in a patient's GCS score is a critical finding that requires immediate nursing intervention and physician notification, as it may indicate worsening neurological function (e.g., increased intracranial pressure).
What if? - If a patient's GCS score drops from 14 to 9, the nurse must recognize this as a significant decline. The priority action is to assess the patient's airway, breathing, and circulation (ABCs), prepare for potential airway protection (intubation), and urgently notify the medical team, as a score below 8 often indicates a coma.

How to Approach the Question

First, identify the core concept of the question, which is the Glasgow Coma Scale (GCS) and its scoring system.
Recall the three components that make up the GCS: Eye Opening (E), Verbal Response (V), and Motor Response (M).
Remember the scoring range for each component. Crucially, recall that the lowest score for any component, indicating 'no response', is 1, not 0.
Calculate the total minimum score by adding the minimum score from each of the three components.
Select the option that matches your calculated total minimum score.

Concept Tested & Keywords

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E6 Guide to Mental Health & PSYCHIATRIC NURSING R Sreevani— Part 2 (pp 290-564 of 579) p. 196-198

E6 Nursing Fundamentals Taylor p. 412-414

Practise the full GMCH - 2015

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