## **Core Concept**
The Glasgow Coma Scale (GCS) is a neurological scale used to assess the level of consciousness in a person, especially after a brain injury. It evaluates patients based on three aspects: eye opening, verbal response, and motor response. The total GCS score ranges from 3 to 15, with higher scores indicating better neurological function.

## **Why the Correct Answer is Right**
The patient in the question is intubated, which means the verbal response cannot be assessed in the usual way since the patient cannot speak. The verbal response component is often scored as "T" for intubated patients, but for calculation purposes, we focus on eye opening and motor response. The patient has abnormal extension to painful stimulus, which corresponds to a motor score of 2. The patient opens eyes to painful stimulus, which corresponds to an eye opening score of 2. Assuming the best possible verbal response cannot be assessed but is often given a score that does not change the overall score significantly in intubated patients, we focus on the eye and motor scores. Therefore, if we consider a simplified scenario where we only have eye and motor scores (E=2, M=2), and without a verbal score adjustment for intubation, the closest or a typical score could reflect these parameters.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not accurately reflect the scores for a patient with the described responses.
- **Option B:** This option might seem plausible but does not accurately match the GCS scoring for a patient who is intubated, has abnormal extension, and opens eyes to pain.
- **Option D:** This option is incorrect because it suggests a much higher level of consciousness than described.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the GCS score is crucial for assessing and communicating the level of consciousness in patients, especially in critical care settings. For intubated patients, the verbal component is often not assessable, making the eye and motor components critical for evaluation. A score of 2 for eye opening (to pain) and 2 for motor response (abnormal extension) gives us a minimum of 4 out of 15, not counting any verbal response.

## **Correct Answer: B. 5**